Home / 122,556.91-169,102.30-71,546.50

Finding the Fourth Proportional to 122,556.91, 169,102.30 and 71,546.50

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Solution

The fourth proportional to 122,556.91, 169,102.30 and 71,546.50 is: 98,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,556.91 : 169,102.30 = 71,546.50 : x
  2. Step 2: Convert to fraction form
    122,556.91/169,102.30 = 71,546.50/x
  3. Step 3: Cross multiply
    122,556.91x = 169,102.30 × 71,546.50
  4. Step 4: Simplify right side
    122,556.91x = 12,098,677,706.95
  5. Step 5: Solve for x
    x = 12,098,677,706.95/122,556.91
  6. Step 6: Final answer
    x = 98,718.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.