Home / 134,147.20-201,350.40-81,659.20

Finding the Fourth Proportional to 134,147.20, 201,350.40 and 81,659.20

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Solution

The fourth proportional to 134,147.20, 201,350.40 and 81,659.20 is: 122,567.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,147.20 : 201,350.40 = 81,659.20 : x
  2. Step 2: Convert to fraction form
    134,147.20/201,350.40 = 81,659.20/x
  3. Step 3: Cross multiply
    134,147.20x = 201,350.40 × 81,659.20
  4. Step 4: Simplify right side
    134,147.20x = 16,442,112,583.68
  5. Step 5: Solve for x
    x = 16,442,112,583.68/134,147.20
  6. Step 6: Final answer
    x = 122,567.69

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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.