Home / 129,646.80-194,470.20-31,150.80

Finding the Fourth Proportional to 129,646.80, 194,470.20 and 31,150.80

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Solution

The fourth proportional to 129,646.80, 194,470.20 and 31,150.80 is: 46,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,646.80 : 194,470.20 = 31,150.80 : x
  2. Step 2: Convert to fraction form
    129,646.80/194,470.20 = 31,150.80/x
  3. Step 3: Cross multiply
    129,646.80x = 194,470.20 × 31,150.80
  4. Step 4: Simplify right side
    129,646.80x = 6,057,902,306.16
  5. Step 5: Solve for x
    x = 6,057,902,306.16/129,646.80
  6. Step 6: Final answer
    x = 46,726.20

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1.5x scale

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.