Home / 462,091.20-693,136.80-129,667.20

Finding the Fourth Proportional to 462,091.20, 693,136.80 and 129,667.20

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Solution

The fourth proportional to 462,091.20, 693,136.80 and 129,667.20 is: 194,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,091.20 : 693,136.80 = 129,667.20 : x
  2. Step 2: Convert to fraction form
    462,091.20/693,136.80 = 129,667.20/x
  3. Step 3: Cross multiply
    462,091.20x = 693,136.80 × 129,667.20
  4. Step 4: Simplify right side
    462,091.20x = 89,877,108,072.96
  5. Step 5: Solve for x
    x = 89,877,108,072.96/462,091.20
  6. Step 6: Final answer
    x = 194,500.80

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Similar ratio
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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.