Home / 103,174.27-142,320.02-64,873.13

Finding the Fourth Proportional to 103,174.27, 142,320.02 and 64,873.13

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Solution

The fourth proportional to 103,174.27, 142,320.02 and 64,873.13 is: 89,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,174.27 : 142,320.02 = 64,873.13 : x
  2. Step 2: Convert to fraction form
    103,174.27/142,320.02 = 64,873.13/x
  3. Step 3: Cross multiply
    103,174.27x = 142,320.02 × 64,873.13
  4. Step 4: Simplify right side
    103,174.27x = 9,232,744,123.10
  5. Step 5: Solve for x
    x = 9,232,744,123.10/103,174.27
  6. Step 6: Final answer
    x = 89,486.89

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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.