Home / 132,349.73-198,508.18-78,346.55

Finding the Fourth Proportional to 132,349.73, 198,508.18 and 78,346.55

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Solution

The fourth proportional to 132,349.73, 198,508.18 and 78,346.55 is: 117,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,349.73 : 198,508.18 = 78,346.55 : x
  2. Step 2: Convert to fraction form
    132,349.73/198,508.18 = 78,346.55/x
  3. Step 3: Cross multiply
    132,349.73x = 198,508.18 × 78,346.55
  4. Step 4: Simplify right side
    132,349.73x = 15,552,430,899.58
  5. Step 5: Solve for x
    x = 15,552,430,899.58/132,349.73
  6. Step 6: Final answer
    x = 117,510.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.