Home / 495,426.20-743,139.30-121,449.20

Finding the Fourth Proportional to 495,426.20, 743,139.30 and 121,449.20

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Solution

The fourth proportional to 495,426.20, 743,139.30 and 121,449.20 is: 182,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,426.20 : 743,139.30 = 121,449.20 : x
  2. Step 2: Convert to fraction form
    495,426.20/743,139.30 = 121,449.20/x
  3. Step 3: Cross multiply
    495,426.20x = 743,139.30 × 121,449.20
  4. Step 4: Simplify right side
    495,426.20x = 90,253,673,473.56
  5. Step 5: Solve for x
    x = 90,253,673,473.56/495,426.20
  6. Step 6: Final answer
    x = 182,173.80

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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.