Home / 129,996.18-195,007.05-54,079.07

Finding the Fourth Proportional to 129,996.18, 195,007.05 and 54,079.07

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Solution

The fourth proportional to 129,996.18, 195,007.05 and 54,079.07 is: 81,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,996.18 : 195,007.05 = 54,079.07 : x
  2. Step 2: Convert to fraction form
    129,996.18/195,007.05 = 54,079.07/x
  3. Step 3: Cross multiply
    129,996.18x = 195,007.05 × 54,079.07
  4. Step 4: Simplify right side
    129,996.18x = 10,545,798,932.41
  5. Step 5: Solve for x
    x = 10,545,798,932.41/129,996.18
  6. Step 6: Final answer
    x = 81,123.91

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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.