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Finding the Fourth Proportional to 159,613.34, 220,108.59 and 135,480.20

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Solution

The fourth proportional to 159,613.34, 220,108.59 and 135,480.20 is: 186,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,613.34 : 220,108.59 = 135,480.20 : x
  2. Step 2: Convert to fraction form
    159,613.34/220,108.59 = 135,480.20/x
  3. Step 3: Cross multiply
    159,613.34x = 220,108.59 × 135,480.20
  4. Step 4: Simplify right side
    159,613.34x = 29,820,354,694.38
  5. Step 5: Solve for x
    x = 29,820,354,694.38/159,613.34
  6. Step 6: Final answer
    x = 186,828.72

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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.