Home / 129,871.70-194,807.55-108,001.70

Finding the Fourth Proportional to 129,871.70, 194,807.55 and 108,001.70

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Solution

The fourth proportional to 129,871.70, 194,807.55 and 108,001.70 is: 162,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,871.70 : 194,807.55 = 108,001.70 : x
  2. Step 2: Convert to fraction form
    129,871.70/194,807.55 = 108,001.70/x
  3. Step 3: Cross multiply
    129,871.70x = 194,807.55 × 108,001.70
  4. Step 4: Simplify right side
    129,871.70x = 21,039,546,572.84
  5. Step 5: Solve for x
    x = 21,039,546,572.84/129,871.70
  6. Step 6: Final answer
    x = 162,002.55

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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.