Home / 96,387.20-144,494.40-85,889.60

Finding the Fourth Proportional to 96,387.20, 144,494.40 and 85,889.60

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Solution

The fourth proportional to 96,387.20, 144,494.40 and 85,889.60 is: 128,757.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,387.20 : 144,494.40 = 85,889.60 : x
  2. Step 2: Convert to fraction form
    96,387.20/144,494.40 = 85,889.60/x
  3. Step 3: Cross multiply
    96,387.20x = 144,494.40 × 85,889.60
  4. Step 4: Simplify right side
    96,387.20x = 12,410,566,218.24
  5. Step 5: Solve for x
    x = 12,410,566,218.24/96,387.20
  6. Step 6: Final answer
    x = 128,757.41

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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.