Home / 102,761.01-141,809.79-57,438.98

Finding the Fourth Proportional to 102,761.01, 141,809.79 and 57,438.98

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Solution

The fourth proportional to 102,761.01, 141,809.79 and 57,438.98 is: 79,265.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,761.01 : 141,809.79 = 57,438.98 : x
  2. Step 2: Convert to fraction form
    102,761.01/141,809.79 = 57,438.98/x
  3. Step 3: Cross multiply
    102,761.01x = 141,809.79 × 57,438.98
  4. Step 4: Simplify right side
    102,761.01x = 8,145,409,691.61
  5. Step 5: Solve for x
    x = 8,145,409,691.61/102,761.01
  6. Step 6: Final answer
    x = 79,265.57

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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.