Home / 495,424.20-743,136.30-121,447.20

Finding the Fourth Proportional to 495,424.20, 743,136.30 and 121,447.20

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Solution

The fourth proportional to 495,424.20, 743,136.30 and 121,447.20 is: 182,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,424.20 : 743,136.30 = 121,447.20 : x
  2. Step 2: Convert to fraction form
    495,424.20/743,136.30 = 121,447.20/x
  3. Step 3: Cross multiply
    495,424.20x = 743,136.30 × 121,447.20
  4. Step 4: Simplify right side
    495,424.20x = 90,251,822,853.36
  5. Step 5: Solve for x
    x = 90,251,822,853.36/495,424.20
  6. Step 6: Final answer
    x = 182,170.80

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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.