Home / 122,436.85-168,962.70-68,721.93

Finding the Fourth Proportional to 122,436.85, 168,962.70 and 68,721.93

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Solution

The fourth proportional to 122,436.85, 168,962.70 and 68,721.93 is: 94,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,436.85 : 168,962.70 = 68,721.93 : x
  2. Step 2: Convert to fraction form
    122,436.85/168,962.70 = 68,721.93/x
  3. Step 3: Cross multiply
    122,436.85x = 168,962.70 × 68,721.93
  4. Step 4: Simplify right side
    122,436.85x = 11,611,442,842.01
  5. Step 5: Solve for x
    x = 11,611,442,842.01/122,436.85
  6. Step 6: Final answer
    x = 94,836.18

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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.