Home / 187,770.76-281,728.06-112,943.90

Finding the Fourth Proportional to 187,770.76, 281,728.06 and 112,943.90

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Solution

The fourth proportional to 187,770.76, 281,728.06 and 112,943.90 is: 169,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,770.76 : 281,728.06 = 112,943.90 : x
  2. Step 2: Convert to fraction form
    187,770.76/281,728.06 = 112,943.90/x
  3. Step 3: Cross multiply
    187,770.76x = 281,728.06 × 112,943.90
  4. Step 4: Simplify right side
    187,770.76x = 31,819,466,257.79
  5. Step 5: Solve for x
    x = 31,819,466,257.79/187,770.76
  6. Step 6: Final answer
    x = 169,459.11

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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.