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Finding the Fourth Proportional to 172,159.57, 258,254.22 and 47,500.57

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Solution

The fourth proportional to 172,159.57, 258,254.22 and 47,500.57 is: 71,254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,159.57 : 258,254.22 = 47,500.57 : x
  2. Step 2: Convert to fraction form
    172,159.57/258,254.22 = 47,500.57/x
  3. Step 3: Cross multiply
    172,159.57x = 258,254.22 × 47,500.57
  4. Step 4: Simplify right side
    172,159.57x = 12,267,222,654.91
  5. Step 5: Solve for x
    x = 12,267,222,654.91/172,159.57
  6. Step 6: Final answer
    x = 71,254.96

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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.