Home / 141,221.80-211,724.70-71,151.40

Finding the Fourth Proportional to 141,221.80, 211,724.70 and 71,151.40

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Solution

The fourth proportional to 141,221.80, 211,724.70 and 71,151.40 is: 106,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,221.80 : 211,724.70 = 71,151.40 : x
  2. Step 2: Convert to fraction form
    141,221.80/211,724.70 = 71,151.40/x
  3. Step 3: Cross multiply
    141,221.80x = 211,724.70 × 71,151.40
  4. Step 4: Simplify right side
    141,221.80x = 15,064,508,819.58
  5. Step 5: Solve for x
    x = 15,064,508,819.58/141,221.80
  6. Step 6: Final answer
    x = 106,672.69

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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.