Home / 103,177.27-142,324.13-64,876.10

Finding the Fourth Proportional to 103,177.27, 142,324.13 and 64,876.10

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Solution

The fourth proportional to 103,177.27, 142,324.13 and 64,876.10 is: 89,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,177.27 : 142,324.13 = 64,876.10 : x
  2. Step 2: Convert to fraction form
    103,177.27/142,324.13 = 64,876.10/x
  3. Step 3: Cross multiply
    103,177.27x = 142,324.13 × 64,876.10
  4. Step 4: Simplify right side
    103,177.27x = 9,233,435,008.29
  5. Step 5: Solve for x
    x = 9,233,435,008.29/103,177.27
  6. Step 6: Final answer
    x = 89,490.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.