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Finding the Fourth Proportional to 132,885.62, 199,401.33 and 53,978.66

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Solution

The fourth proportional to 132,885.62, 199,401.33 and 53,978.66 is: 80,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,885.62 : 199,401.33 = 53,978.66 : x
  2. Step 2: Convert to fraction form
    132,885.62/199,401.33 = 53,978.66/x
  3. Step 3: Cross multiply
    132,885.62x = 199,401.33 × 53,978.66
  4. Step 4: Simplify right side
    132,885.62x = 10,763,416,595.62
  5. Step 5: Solve for x
    x = 10,763,416,595.62/132,885.62
  6. Step 6: Final answer
    x = 80,997.60

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1.5x scale

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.