Home / 495,416.20-743,124.30-121,439.20

Finding the Fourth Proportional to 495,416.20, 743,124.30 and 121,439.20

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Solution

The fourth proportional to 495,416.20, 743,124.30 and 121,439.20 is: 182,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,416.20 : 743,124.30 = 121,439.20 : x
  2. Step 2: Convert to fraction form
    495,416.20/743,124.30 = 121,439.20/x
  3. Step 3: Cross multiply
    495,416.20x = 743,124.30 × 121,439.20
  4. Step 4: Simplify right side
    495,416.20x = 90,244,420,492.56
  5. Step 5: Solve for x
    x = 90,244,420,492.56/495,416.20
  6. Step 6: Final answer
    x = 182,158.80

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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.