Home / 85,174.41-127,105.39-74,808.03

Finding the Fourth Proportional to 85,174.41, 127,105.39 and 74,808.03

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Solution

The fourth proportional to 85,174.41, 127,105.39 and 74,808.03 is: 111,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,174.41 : 127,105.39 = 74,808.03 : x
  2. Step 2: Convert to fraction form
    85,174.41/127,105.39 = 74,808.03/x
  3. Step 3: Cross multiply
    85,174.41x = 127,105.39 × 74,808.03
  4. Step 4: Simplify right side
    85,174.41x = 9,508,503,828.28
  5. Step 5: Solve for x
    x = 9,508,503,828.28/85,174.41
  6. Step 6: Final answer
    x = 111,635.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.