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Finding the Fourth Proportional to 85,141.81, 127,712.75 and 35,166.98

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Solution

The fourth proportional to 85,141.81, 127,712.75 and 35,166.98 is: 52,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,141.81 : 127,712.75 = 35,166.98 : x
  2. Step 2: Convert to fraction form
    85,141.81/127,712.75 = 35,166.98/x
  3. Step 3: Cross multiply
    85,141.81x = 127,712.75 × 35,166.98
  4. Step 4: Simplify right side
    85,141.81x = 4,491,271,868.44
  5. Step 5: Solve for x
    x = 4,491,271,868.44/85,141.81
  6. Step 6: Final answer
    x = 52,750.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.