Home / 105,339.35-157,935.24-38,770.85

Finding the Fourth Proportional to 105,339.35, 157,935.24 and 38,770.85

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Solution

The fourth proportional to 105,339.35, 157,935.24 and 38,770.85 is: 58,129.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,339.35 : 157,935.24 = 38,770.85 : x
  2. Step 2: Convert to fraction form
    105,339.35/157,935.24 = 38,770.85/x
  3. Step 3: Cross multiply
    105,339.35x = 157,935.24 × 38,770.85
  4. Step 4: Simplify right side
    105,339.35x = 6,123,282,710.08
  5. Step 5: Solve for x
    x = 6,123,282,710.08/105,339.35
  6. Step 6: Final answer
    x = 58,129.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.