Home / 132,407.20-182,703.90-78,672.64

Finding the Fourth Proportional to 132,407.20, 182,703.90 and 78,672.64

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Solution

The fourth proportional to 132,407.20, 182,703.90 and 78,672.64 is: 108,557.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,407.20 : 182,703.90 = 78,672.64 : x
  2. Step 2: Convert to fraction form
    132,407.20/182,703.90 = 78,672.64/x
  3. Step 3: Cross multiply
    132,407.20x = 182,703.90 × 78,672.64
  4. Step 4: Simplify right side
    132,407.20x = 14,373,798,151.30
  5. Step 5: Solve for x
    x = 14,373,798,151.30/132,407.20
  6. Step 6: Final answer
    x = 108,557.53

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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.