Home / 100,691.31-151,350.77-63,490.44

Finding the Fourth Proportional to 100,691.31, 151,350.77 and 63,490.44

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Solution

The fourth proportional to 100,691.31, 151,350.77 and 63,490.44 is: 95,433.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,691.31 : 151,350.77 = 63,490.44 : x
  2. Step 2: Convert to fraction form
    100,691.31/151,350.77 = 63,490.44/x
  3. Step 3: Cross multiply
    100,691.31x = 151,350.77 × 63,490.44
  4. Step 4: Simplify right side
    100,691.31x = 9,609,326,981.64
  5. Step 5: Solve for x
    x = 9,609,326,981.64/100,691.31
  6. Step 6: Final answer
    x = 95,433.53

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1.5x scale

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.