Home / 122,531.07-169,086.87-68,818.35

Finding the Fourth Proportional to 122,531.07, 169,086.87 and 68,818.35

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Solution

The fourth proportional to 122,531.07, 169,086.87 and 68,818.35 is: 94,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,531.07 : 169,086.87 = 68,818.35 : x
  2. Step 2: Convert to fraction form
    122,531.07/169,086.87 = 68,818.35/x
  3. Step 3: Cross multiply
    122,531.07x = 169,086.87 × 68,818.35
  4. Step 4: Simplify right side
    122,531.07x = 11,636,279,400.06
  5. Step 5: Solve for x
    x = 11,636,279,400.06/122,531.07
  6. Step 6: Final answer
    x = 94,965.95

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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.