Home / 102,557.07-141,535.85-57,243.87

Finding the Fourth Proportional to 102,557.07, 141,535.85 and 57,243.87

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Solution

The fourth proportional to 102,557.07, 141,535.85 and 57,243.87 is: 79,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,557.07 : 141,535.85 = 57,243.87 : x
  2. Step 2: Convert to fraction form
    102,557.07/141,535.85 = 57,243.87/x
  3. Step 3: Cross multiply
    102,557.07x = 141,535.85 × 57,243.87
  4. Step 4: Simplify right side
    102,557.07x = 8,102,059,797.74
  5. Step 5: Solve for x
    x = 8,102,059,797.74/102,557.07
  6. Step 6: Final answer
    x = 79,000.50

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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.