Home / 136,044.62-187,833.04-121,659.70

Finding the Fourth Proportional to 136,044.62, 187,833.04 and 121,659.70

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Solution

The fourth proportional to 136,044.62, 187,833.04 and 121,659.70 is: 167,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,044.62 : 187,833.04 = 121,659.70 : x
  2. Step 2: Convert to fraction form
    136,044.62/187,833.04 = 121,659.70/x
  3. Step 3: Cross multiply
    136,044.62x = 187,833.04 × 121,659.70
  4. Step 4: Simplify right side
    136,044.62x = 22,851,711,296.49
  5. Step 5: Solve for x
    x = 22,851,711,296.49/136,044.62
  6. Step 6: Final answer
    x = 167,972.18

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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.