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Finding the Fourth Proportional to 172,290.56, 258,595.76 and 88,110.88

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Solution

The fourth proportional to 172,290.56, 258,595.76 and 88,110.88 is: 132,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,290.56 : 258,595.76 = 88,110.88 : x
  2. Step 2: Convert to fraction form
    172,290.56/258,595.76 = 88,110.88/x
  3. Step 3: Cross multiply
    172,290.56x = 258,595.76 × 88,110.88
  4. Step 4: Simplify right side
    172,290.56x = 22,785,099,551.66
  5. Step 5: Solve for x
    x = 22,785,099,551.66/172,290.56
  6. Step 6: Final answer
    x = 132,248.10

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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.