Home / 142,294.68-213,396.18-79,144.92

Finding the Fourth Proportional to 142,294.68, 213,396.18 and 79,144.92

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Solution

The fourth proportional to 142,294.68, 213,396.18 and 79,144.92 is: 118,691.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,294.68 : 213,396.18 = 79,144.92 : x
  2. Step 2: Convert to fraction form
    142,294.68/213,396.18 = 79,144.92/x
  3. Step 3: Cross multiply
    142,294.68x = 213,396.18 × 79,144.92
  4. Step 4: Simplify right side
    142,294.68x = 16,889,223,594.41
  5. Step 5: Solve for x
    x = 16,889,223,594.41/142,294.68
  6. Step 6: Final answer
    x = 118,691.88

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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.