Home / 144,002.40-216,003.60-108,520.80

Finding the Fourth Proportional to 144,002.40, 216,003.60 and 108,520.80

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Solution

The fourth proportional to 144,002.40, 216,003.60 and 108,520.80 is: 162,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,002.40 : 216,003.60 = 108,520.80 : x
  2. Step 2: Convert to fraction form
    144,002.40/216,003.60 = 108,520.80/x
  3. Step 3: Cross multiply
    144,002.40x = 216,003.60 × 108,520.80
  4. Step 4: Simplify right side
    144,002.40x = 23,440,883,474.88
  5. Step 5: Solve for x
    x = 23,440,883,474.88/144,002.40
  6. Step 6: Final answer
    x = 162,781.20

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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.