Home / 156,987.40-235,481.10-138,616.60

Finding the Fourth Proportional to 156,987.40, 235,481.10 and 138,616.60

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Solution

The fourth proportional to 156,987.40, 235,481.10 and 138,616.60 is: 207,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.40 : 235,481.10 = 138,616.60 : x
  2. Step 2: Convert to fraction form
    156,987.40/235,481.10 = 138,616.60/x
  3. Step 3: Cross multiply
    156,987.40x = 235,481.10 × 138,616.60
  4. Step 4: Simplify right side
    156,987.40x = 32,641,589,446.26
  5. Step 5: Solve for x
    x = 32,641,589,446.26/156,987.40
  6. Step 6: Final answer
    x = 207,924.90

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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.