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Finding the Fourth Proportional to 159,755.67, 220,536.21 and 137,864.87

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Solution

The fourth proportional to 159,755.67, 220,536.21 and 137,864.87 is: 190,316.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,755.67 : 220,536.21 = 137,864.87 : x
  2. Step 2: Convert to fraction form
    159,755.67/220,536.21 = 137,864.87/x
  3. Step 3: Cross multiply
    159,755.67x = 220,536.21 × 137,864.87
  4. Step 4: Simplify right side
    159,755.67x = 30,404,194,819.26
  5. Step 5: Solve for x
    x = 30,404,194,819.26/159,755.67
  6. Step 6: Final answer
    x = 190,316.84

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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.