Home / 85,046.24-127,569.36-70,191.20

Finding the Fourth Proportional to 85,046.24, 127,569.36 and 70,191.20

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Solution

The fourth proportional to 85,046.24, 127,569.36 and 70,191.20 is: 105,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,046.24 : 127,569.36 = 70,191.20 : x
  2. Step 2: Convert to fraction form
    85,046.24/127,569.36 = 70,191.20/x
  3. Step 3: Cross multiply
    85,046.24x = 127,569.36 × 70,191.20
  4. Step 4: Simplify right side
    85,046.24x = 8,954,246,461.63
  5. Step 5: Solve for x
    x = 8,954,246,461.63/85,046.24
  6. Step 6: Final answer
    x = 105,286.80

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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.