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Finding the Fourth Proportional to 172,365.68, 258,790.62 and 88,186.20

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Solution

The fourth proportional to 172,365.68, 258,790.62 and 88,186.20 is: 132,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,365.68 : 258,790.62 = 88,186.20 : x
  2. Step 2: Convert to fraction form
    172,365.68/258,790.62 = 88,186.20/x
  3. Step 3: Cross multiply
    172,365.68x = 258,790.62 × 88,186.20
  4. Step 4: Simplify right side
    172,365.68x = 22,821,761,373.44
  5. Step 5: Solve for x
    x = 22,821,761,373.44/172,365.68
  6. Step 6: Final answer
    x = 132,403.16

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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.