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Finding the Fourth Proportional to 172,290.81, 258,596.14 and 88,111.13

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Solution

The fourth proportional to 172,290.81, 258,596.14 and 88,111.13 is: 132,248.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,290.81 : 258,596.14 = 88,111.13 : x
  2. Step 2: Convert to fraction form
    172,290.81/258,596.14 = 88,111.13/x
  3. Step 3: Cross multiply
    172,290.81x = 258,596.14 × 88,111.13
  4. Step 4: Simplify right side
    172,290.81x = 22,785,198,109.04
  5. Step 5: Solve for x
    x = 22,785,198,109.04/172,290.81
  6. Step 6: Final answer
    x = 132,248.48

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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.