Home / 102,664.14-141,672.28-57,341.91

Finding the Fourth Proportional to 102,664.14, 141,672.28 and 57,341.91

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Solution

The fourth proportional to 102,664.14, 141,672.28 and 57,341.91 is: 79,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,664.14 : 141,672.28 = 57,341.91 : x
  2. Step 2: Convert to fraction form
    102,664.14/141,672.28 = 57,341.91/x
  3. Step 3: Cross multiply
    102,664.14x = 141,672.28 × 57,341.91
  4. Step 4: Simplify right side
    102,664.14x = 8,123,759,129.25
  5. Step 5: Solve for x
    x = 8,123,759,129.25/102,664.14
  6. Step 6: Final answer
    x = 79,129.47

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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.