Home / 102,695.15-141,705.28-57,367.53

Finding the Fourth Proportional to 102,695.15, 141,705.28 and 57,367.53

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Solution

The fourth proportional to 102,695.15, 141,705.28 and 57,367.53 is: 79,159.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,695.15 : 141,705.28 = 57,367.53 : x
  2. Step 2: Convert to fraction form
    102,695.15/141,705.28 = 57,367.53/x
  3. Step 3: Cross multiply
    102,695.15x = 141,705.28 × 57,367.53
  4. Step 4: Simplify right side
    102,695.15x = 8,129,281,901.56
  5. Step 5: Solve for x
    x = 8,129,281,901.56/102,695.15
  6. Step 6: Final answer
    x = 79,159.36

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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.