Home / 102,726.54-141,759.92-57,404.90

Finding the Fourth Proportional to 102,726.54, 141,759.92 and 57,404.90

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Solution

The fourth proportional to 102,726.54, 141,759.92 and 57,404.90 is: 79,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,726.54 : 141,759.92 = 57,404.90 : x
  2. Step 2: Convert to fraction form
    102,726.54/141,759.92 = 57,404.90/x
  3. Step 3: Cross multiply
    102,726.54x = 141,759.92 × 57,404.90
  4. Step 4: Simplify right side
    102,726.54x = 8,137,714,031.61
  5. Step 5: Solve for x
    x = 8,137,714,031.61/102,726.54
  6. Step 6: Final answer
    x = 79,217.25

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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.