Home / 124,947.20-187,129.20-122,441.60

Finding the Fourth Proportional to 124,947.20, 187,129.20 and 122,441.60

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Solution

The fourth proportional to 124,947.20, 187,129.20 and 122,441.60 is: 183,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,947.20 : 187,129.20 = 122,441.60 : x
  2. Step 2: Convert to fraction form
    124,947.20/187,129.20 = 122,441.60/x
  3. Step 3: Cross multiply
    124,947.20x = 187,129.20 × 122,441.60
  4. Step 4: Simplify right side
    124,947.20x = 22,912,398,654.72
  5. Step 5: Solve for x
    x = 22,912,398,654.72/124,947.20
  6. Step 6: Final answer
    x = 183,376.65

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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.