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Finding the Fourth Proportional to 148,800.59, 205,346.30 and 80,818.20

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Solution

The fourth proportional to 148,800.59, 205,346.30 and 80,818.20 is: 111,529.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,800.59 : 205,346.30 = 80,818.20 : x
  2. Step 2: Convert to fraction form
    148,800.59/205,346.30 = 80,818.20/x
  3. Step 3: Cross multiply
    148,800.59x = 205,346.30 × 80,818.20
  4. Step 4: Simplify right side
    148,800.59x = 16,595,717,938.57
  5. Step 5: Solve for x
    x = 16,595,717,938.57/148,800.59
  6. Step 6: Final answer
    x = 111,529.92

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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.