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Finding the Fourth Proportional to 159,655.20, 220,324.64 and 88,033.65

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Solution

The fourth proportional to 159,655.20, 220,324.64 and 88,033.65 is: 121,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,655.20 : 220,324.64 = 88,033.65 : x
  2. Step 2: Convert to fraction form
    159,655.20/220,324.64 = 88,033.65/x
  3. Step 3: Cross multiply
    159,655.20x = 220,324.64 × 88,033.65
  4. Step 4: Simplify right side
    159,655.20x = 19,395,981,803.97
  5. Step 5: Solve for x
    x = 19,395,981,803.97/159,655.20
  6. Step 6: Final answer
    x = 121,486.69

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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.