Home / 120,520.20-180,815.66-53,945.52

Finding the Fourth Proportional to 120,520.20, 180,815.66 and 53,945.52

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Solution

The fourth proportional to 120,520.20, 180,815.66 and 53,945.52 is: 80,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,520.20 : 180,815.66 = 53,945.52 : x
  2. Step 2: Convert to fraction form
    120,520.20/180,815.66 = 53,945.52/x
  3. Step 3: Cross multiply
    120,520.20x = 180,815.66 × 53,945.52
  4. Step 4: Simplify right side
    120,520.20x = 9,754,193,898.76
  5. Step 5: Solve for x
    x = 9,754,193,898.76/120,520.20
  6. Step 6: Final answer
    x = 80,934.10

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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.