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Finding the Fourth Proportional to 132,115.76, 182,320.77 and 71,686.82

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Solution

The fourth proportional to 132,115.76, 182,320.77 and 71,686.82 is: 98,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,115.76 : 182,320.77 = 71,686.82 : x
  2. Step 2: Convert to fraction form
    132,115.76/182,320.77 = 71,686.82/x
  3. Step 3: Cross multiply
    132,115.76x = 182,320.77 × 71,686.82
  4. Step 4: Simplify right side
    132,115.76x = 13,069,996,945.88
  5. Step 5: Solve for x
    x = 13,069,996,945.88/132,115.76
  6. Step 6: Final answer
    x = 98,928.37

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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.