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Finding the Fourth Proportional to 132,343.66, 182,613.72 and 78,627.32

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Solution

The fourth proportional to 132,343.66, 182,613.72 and 78,627.32 is: 108,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,343.66 : 182,613.72 = 78,627.32 : x
  2. Step 2: Convert to fraction form
    132,343.66/182,613.72 = 78,627.32/x
  3. Step 3: Cross multiply
    132,343.66x = 182,613.72 × 78,627.32
  4. Step 4: Simplify right side
    132,343.66x = 14,358,427,398.83
  5. Step 5: Solve for x
    x = 14,358,427,398.83/132,343.66
  6. Step 6: Final answer
    x = 108,493.50

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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.