Home / 122,787.16-169,444.51-68,338.96

Finding the Fourth Proportional to 122,787.16, 169,444.51 and 68,338.96

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Solution

The fourth proportional to 122,787.16, 169,444.51 and 68,338.96 is: 94,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,787.16 : 169,444.51 = 68,338.96 : x
  2. Step 2: Convert to fraction form
    122,787.16/169,444.51 = 68,338.96/x
  3. Step 3: Cross multiply
    122,787.16x = 169,444.51 × 68,338.96
  4. Step 4: Simplify right side
    122,787.16x = 11,579,661,591.11
  5. Step 5: Solve for x
    x = 11,579,661,591.11/122,787.16
  6. Step 6: Final answer
    x = 94,306.78

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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.