Home / 129,966.78-194,957.04-36,479.82

Finding the Fourth Proportional to 129,966.78, 194,957.04 and 36,479.82

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Solution

The fourth proportional to 129,966.78, 194,957.04 and 36,479.82 is: 54,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,966.78 : 194,957.04 = 36,479.82 : x
  2. Step 2: Convert to fraction form
    129,966.78/194,957.04 = 36,479.82/x
  3. Step 3: Cross multiply
    129,966.78x = 194,957.04 × 36,479.82
  4. Step 4: Simplify right side
    129,966.78x = 7,111,997,726.93
  5. Step 5: Solve for x
    x = 7,111,997,726.93/129,966.78
  6. Step 6: Final answer
    x = 54,721.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.