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Finding the Fourth Proportional to 160,613.20, 221,646 and 88,997.86

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Solution

The fourth proportional to 160,613.20, 221,646 and 88,997.86 is: 122,816.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,613.20 : 221,646 = 88,997.86 : x
  2. Step 2: Convert to fraction form
    160,613.20/221,646 = 88,997.86/x
  3. Step 3: Cross multiply
    160,613.20x = 221,646 × 88,997.86
  4. Step 4: Simplify right side
    160,613.20x = 19,726,019,677.56
  5. Step 5: Solve for x
    x = 19,726,019,677.56/160,613.20
  6. Step 6: Final answer
    x = 122,816.93

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1.5x scale

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.