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Finding the Fourth Proportional to 180,712.17, 270,700.11 and 85,654.22

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Solution

The fourth proportional to 180,712.17, 270,700.11 and 85,654.22 is: 128,306.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,712.17 : 270,700.11 = 85,654.22 : x
  2. Step 2: Convert to fraction form
    180,712.17/270,700.11 = 85,654.22/x
  3. Step 3: Cross multiply
    180,712.17x = 270,700.11 × 85,654.22
  4. Step 4: Simplify right side
    180,712.17x = 23,186,605,422.46
  5. Step 5: Solve for x
    x = 23,186,605,422.46/180,712.17
  6. Step 6: Final answer
    x = 128,306.83

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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.