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Finding the Fourth Proportional to 131,652.52, 181,679.65 and 71,222.92

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Solution

The fourth proportional to 131,652.52, 181,679.65 and 71,222.92 is: 98,287.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,652.52 : 181,679.65 = 71,222.92 : x
  2. Step 2: Convert to fraction form
    131,652.52/181,679.65 = 71,222.92/x
  3. Step 3: Cross multiply
    131,652.52x = 181,679.65 × 71,222.92
  4. Step 4: Simplify right side
    131,652.52x = 12,939,755,177.58
  5. Step 5: Solve for x
    x = 12,939,755,177.58/131,652.52
  6. Step 6: Final answer
    x = 98,287.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.