Home / 120,248.48-180,414.16-53,734.56

Finding the Fourth Proportional to 120,248.48, 180,414.16 and 53,734.56

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Solution

The fourth proportional to 120,248.48, 180,414.16 and 53,734.56 is: 80,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,248.48 : 180,414.16 = 53,734.56 : x
  2. Step 2: Convert to fraction form
    120,248.48/180,414.16 = 53,734.56/x
  3. Step 3: Cross multiply
    120,248.48x = 180,414.16 × 53,734.56
  4. Step 4: Simplify right side
    120,248.48x = 9,694,475,505.37
  5. Step 5: Solve for x
    x = 9,694,475,505.37/120,248.48
  6. Step 6: Final answer
    x = 80,620.36

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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.