Home / 495,422.20-743,133.30-121,445.20

Finding the Fourth Proportional to 495,422.20, 743,133.30 and 121,445.20

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Solution

The fourth proportional to 495,422.20, 743,133.30 and 121,445.20 is: 182,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,422.20 : 743,133.30 = 121,445.20 : x
  2. Step 2: Convert to fraction form
    495,422.20/743,133.30 = 121,445.20/x
  3. Step 3: Cross multiply
    495,422.20x = 743,133.30 × 121,445.20
  4. Step 4: Simplify right side
    495,422.20x = 90,249,972,245.16
  5. Step 5: Solve for x
    x = 90,249,972,245.16/495,422.20
  6. Step 6: Final answer
    x = 182,167.80

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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.