Home / 145,423.20-218,149.20-50,638.80

Finding the Fourth Proportional to 145,423.20, 218,149.20 and 50,638.80

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Solution

The fourth proportional to 145,423.20, 218,149.20 and 50,638.80 is: 75,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,423.20 : 218,149.20 = 50,638.80 : x
  2. Step 2: Convert to fraction form
    145,423.20/218,149.20 = 50,638.80/x
  3. Step 3: Cross multiply
    145,423.20x = 218,149.20 × 50,638.80
  4. Step 4: Simplify right side
    145,423.20x = 11,046,813,708.96
  5. Step 5: Solve for x
    x = 11,046,813,708.96/145,423.20
  6. Step 6: Final answer
    x = 75,963.21

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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.