Home / 102,463.80-141,399.77-57,141.83

Finding the Fourth Proportional to 102,463.80, 141,399.77 and 57,141.83

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Solution

The fourth proportional to 102,463.80, 141,399.77 and 57,141.83 is: 78,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,463.80 : 141,399.77 = 57,141.83 : x
  2. Step 2: Convert to fraction form
    102,463.80/141,399.77 = 57,141.83/x
  3. Step 3: Cross multiply
    102,463.80x = 141,399.77 × 57,141.83
  4. Step 4: Simplify right side
    102,463.80x = 8,079,841,687.17
  5. Step 5: Solve for x
    x = 8,079,841,687.17/102,463.80
  6. Step 6: Final answer
    x = 78,855.58

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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.