Home / 141,319.38-195,031.62-80,909.04

Finding the Fourth Proportional to 141,319.38, 195,031.62 and 80,909.04

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Solution

The fourth proportional to 141,319.38, 195,031.62 and 80,909.04 is: 111,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,319.38 : 195,031.62 = 80,909.04 : x
  2. Step 2: Convert to fraction form
    141,319.38/195,031.62 = 80,909.04/x
  3. Step 3: Cross multiply
    141,319.38x = 195,031.62 × 80,909.04
  4. Step 4: Simplify right side
    141,319.38x = 15,779,821,143.84
  5. Step 5: Solve for x
    x = 15,779,821,143.84/141,319.38
  6. Step 6: Final answer
    x = 111,660.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.