Home / 180,001.60-270,002.40-120,515.20

Finding the Fourth Proportional to 180,001.60, 270,002.40 and 120,515.20

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Solution

The fourth proportional to 180,001.60, 270,002.40 and 120,515.20 is: 180,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,001.60 : 270,002.40 = 120,515.20 : x
  2. Step 2: Convert to fraction form
    180,001.60/270,002.40 = 120,515.20/x
  3. Step 3: Cross multiply
    180,001.60x = 270,002.40 × 120,515.20
  4. Step 4: Simplify right side
    180,001.60x = 32,539,393,236.48
  5. Step 5: Solve for x
    x = 32,539,393,236.48/180,001.60
  6. Step 6: Final answer
    x = 180,772.80

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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.