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Finding the Fourth Proportional to 172,681.27, 258,543.63 and 88,259.64

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Solution

The fourth proportional to 172,681.27, 258,543.63 and 88,259.64 is: 132,145.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,681.27 : 258,543.63 = 88,259.64 : x
  2. Step 2: Convert to fraction form
    172,681.27/258,543.63 = 88,259.64/x
  3. Step 3: Cross multiply
    172,681.27x = 258,543.63 × 88,259.64
  4. Step 4: Simplify right side
    172,681.27x = 22,818,967,708.09
  5. Step 5: Solve for x
    x = 22,818,967,708.09/172,681.27
  6. Step 6: Final answer
    x = 132,145.01

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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.