Home / 141,221.88-211,920.30-126,700.20

Finding the Fourth Proportional to 141,221.88, 211,920.30 and 126,700.20

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Solution

The fourth proportional to 141,221.88, 211,920.30 and 126,700.20 is: 190,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,221.88 : 211,920.30 = 126,700.20 : x
  2. Step 2: Convert to fraction form
    141,221.88/211,920.30 = 126,700.20/x
  3. Step 3: Cross multiply
    141,221.88x = 211,920.30 × 126,700.20
  4. Step 4: Simplify right side
    141,221.88x = 26,850,344,394.06
  5. Step 5: Solve for x
    x = 26,850,344,394.06/141,221.88
  6. Step 6: Final answer
    x = 190,128.78

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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.