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Finding the Fourth Proportional to 122,393.33, 169,010.49 and 76,531.56

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Solution

The fourth proportional to 122,393.33, 169,010.49 and 76,531.56 is: 105,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,393.33 : 169,010.49 = 76,531.56 : x
  2. Step 2: Convert to fraction form
    122,393.33/169,010.49 = 76,531.56/x
  3. Step 3: Cross multiply
    122,393.33x = 169,010.49 × 76,531.56
  4. Step 4: Simplify right side
    122,393.33x = 12,934,636,456.06
  5. Step 5: Solve for x
    x = 12,934,636,456.06/122,393.33
  6. Step 6: Final answer
    x = 105,680.90

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1.5x scale

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.