Home / 129,962.20-194,928.90-106,547.80

Finding the Fourth Proportional to 129,962.20, 194,928.90 and 106,547.80

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Solution

The fourth proportional to 129,962.20, 194,928.90 and 106,547.80 is: 159,809.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,962.20 : 194,928.90 = 106,547.80 : x
  2. Step 2: Convert to fraction form
    129,962.20/194,928.90 = 106,547.80/x
  3. Step 3: Cross multiply
    129,962.20x = 194,928.90 × 106,547.80
  4. Step 4: Simplify right side
    129,962.20x = 20,769,245,451.42
  5. Step 5: Solve for x
    x = 20,769,245,451.42/129,962.20
  6. Step 6: Final answer
    x = 159,809.89

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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.