Home / 102,877.40-141,983.88-57,557.90

Finding the Fourth Proportional to 102,877.40, 141,983.88 and 57,557.90

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Solution

The fourth proportional to 102,877.40, 141,983.88 and 57,557.90 is: 79,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,877.40 : 141,983.88 = 57,557.90 : x
  2. Step 2: Convert to fraction form
    102,877.40/141,983.88 = 57,557.90/x
  3. Step 3: Cross multiply
    102,877.40x = 141,983.88 × 57,557.90
  4. Step 4: Simplify right side
    102,877.40x = 8,172,293,966.65
  5. Step 5: Solve for x
    x = 8,172,293,966.65/102,877.40
  6. Step 6: Final answer
    x = 79,437.21

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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.