Home / 122,780.75-169,425.33-69,064.61

Finding the Fourth Proportional to 122,780.75, 169,425.33 and 69,064.61

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Solution

The fourth proportional to 122,780.75, 169,425.33 and 69,064.61 is: 95,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,780.75 : 169,425.33 = 69,064.61 : x
  2. Step 2: Convert to fraction form
    122,780.75/169,425.33 = 69,064.61/x
  3. Step 3: Cross multiply
    122,780.75x = 169,425.33 × 69,064.61
  4. Step 4: Simplify right side
    122,780.75x = 11,701,294,340.57
  5. Step 5: Solve for x
    x = 11,701,294,340.57/122,780.75
  6. Step 6: Final answer
    x = 95,302.35

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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.