Home / 122,512.46-169,081.11-71,537.90

Finding the Fourth Proportional to 122,512.46, 169,081.11 and 71,537.90

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Solution

The fourth proportional to 122,512.46, 169,081.11 and 71,537.90 is: 98,730.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,512.46 : 169,081.11 = 71,537.90 : x
  2. Step 2: Convert to fraction form
    122,512.46/169,081.11 = 71,537.90/x
  3. Step 3: Cross multiply
    122,512.46x = 169,081.11 × 71,537.90
  4. Step 4: Simplify right side
    122,512.46x = 12,095,706,693.66
  5. Step 5: Solve for x
    x = 12,095,706,693.66/122,512.46
  6. Step 6: Final answer
    x = 98,730.42

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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.