Home / 102,665.14-141,673.66-57,342.91

Finding the Fourth Proportional to 102,665.14, 141,673.66 and 57,342.91

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Solution

The fourth proportional to 102,665.14, 141,673.66 and 57,342.91 is: 79,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,665.14 : 141,673.66 = 57,342.91 : x
  2. Step 2: Convert to fraction form
    102,665.14/141,673.66 = 57,342.91/x
  3. Step 3: Cross multiply
    102,665.14x = 141,673.66 × 57,342.91
  4. Step 4: Simplify right side
    102,665.14x = 8,123,979,934.75
  5. Step 5: Solve for x
    x = 8,123,979,934.75/102,665.14
  6. Step 6: Final answer
    x = 79,130.85

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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.