Home / 187,418.40-281,257.20-134,865.60

Finding the Fourth Proportional to 187,418.40, 281,257.20 and 134,865.60

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Solution

The fourth proportional to 187,418.40, 281,257.20 and 134,865.60 is: 202,391.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,418.40 : 281,257.20 = 134,865.60 : x
  2. Step 2: Convert to fraction form
    187,418.40/281,257.20 = 134,865.60/x
  3. Step 3: Cross multiply
    187,418.40x = 281,257.20 × 134,865.60
  4. Step 4: Simplify right side
    187,418.40x = 37,931,921,032.32
  5. Step 5: Solve for x
    x = 37,931,921,032.32/187,418.40
  6. Step 6: Final answer
    x = 202,391.66

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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.