Home / 109,680.48-151,358.76-61,932.88

Finding the Fourth Proportional to 109,680.48, 151,358.76 and 61,932.88

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Solution

The fourth proportional to 109,680.48, 151,358.76 and 61,932.88 is: 85,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,680.48 : 151,358.76 = 61,932.88 : x
  2. Step 2: Convert to fraction form
    109,680.48/151,358.76 = 61,932.88/x
  3. Step 3: Cross multiply
    109,680.48x = 151,358.76 × 61,932.88
  4. Step 4: Simplify right side
    109,680.48x = 9,374,083,920.03
  5. Step 5: Solve for x
    x = 9,374,083,920.03/109,680.48
  6. Step 6: Final answer
    x = 85,467.20

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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.