Home / 109,869.39-151,622.74-62,129.88

Finding the Fourth Proportional to 109,869.39, 151,622.74 and 62,129.88

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Solution

The fourth proportional to 109,869.39, 151,622.74 and 62,129.88 is: 85,740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.39 : 151,622.74 = 62,129.88 : x
  2. Step 2: Convert to fraction form
    109,869.39/151,622.74 = 62,129.88/x
  3. Step 3: Cross multiply
    109,869.39x = 151,622.74 × 62,129.88
  4. Step 4: Simplify right side
    109,869.39x = 9,420,302,641.47
  5. Step 5: Solve for x
    x = 9,420,302,641.47/109,869.39
  6. Step 6: Final answer
    x = 85,740.92

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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.