Home / 98,234.79-147,353.22-78,637.92

Finding the Fourth Proportional to 98,234.79, 147,353.22 and 78,637.92

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Solution

The fourth proportional to 98,234.79, 147,353.22 and 78,637.92 is: 117,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,234.79 : 147,353.22 = 78,637.92 : x
  2. Step 2: Convert to fraction form
    98,234.79/147,353.22 = 78,637.92/x
  3. Step 3: Cross multiply
    98,234.79x = 147,353.22 × 78,637.92
  4. Step 4: Simplify right side
    98,234.79x = 11,587,550,726.10
  5. Step 5: Solve for x
    x = 11,587,550,726.10/98,234.79
  6. Step 6: Final answer
    x = 117,957.71

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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.