Home / 113,257.92-169,439.76-99,960.96

Finding the Fourth Proportional to 113,257.92, 169,439.76 and 99,960.96

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Solution

The fourth proportional to 113,257.92, 169,439.76 and 99,960.96 is: 149,546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,257.92 : 169,439.76 = 99,960.96 : x
  2. Step 2: Convert to fraction form
    113,257.92/169,439.76 = 99,960.96/x
  3. Step 3: Cross multiply
    113,257.92x = 169,439.76 × 99,960.96
  4. Step 4: Simplify right side
    113,257.92x = 16,937,361,071.77
  5. Step 5: Solve for x
    x = 16,937,361,071.77/113,257.92
  6. Step 6: Final answer
    x = 149,546.81

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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.