Home / 141,520.32-212,047.20-82,189.44

Finding the Fourth Proportional to 141,520.32, 212,047.20 and 82,189.44

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Solution

The fourth proportional to 141,520.32, 212,047.20 and 82,189.44 is: 123,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,520.32 : 212,047.20 = 82,189.44 : x
  2. Step 2: Convert to fraction form
    141,520.32/212,047.20 = 82,189.44/x
  3. Step 3: Cross multiply
    141,520.32x = 212,047.20 × 82,189.44
  4. Step 4: Simplify right side
    141,520.32x = 17,428,040,621.57
  5. Step 5: Solve for x
    x = 17,428,040,621.57/141,520.32
  6. Step 6: Final answer
    x = 123,148.68

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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.