Home / 132,157.29-182,294.11-78,404.25

Finding the Fourth Proportional to 132,157.29, 182,294.11 and 78,404.25

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Solution

The fourth proportional to 132,157.29, 182,294.11 and 78,404.25 is: 108,148.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,157.29 : 182,294.11 = 78,404.25 : x
  2. Step 2: Convert to fraction form
    132,157.29/182,294.11 = 78,404.25/x
  3. Step 3: Cross multiply
    132,157.29x = 182,294.11 × 78,404.25
  4. Step 4: Simplify right side
    132,157.29x = 14,292,632,777.96
  5. Step 5: Solve for x
    x = 14,292,632,777.96/132,157.29
  6. Step 6: Final answer
    x = 108,148.65

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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.