Home / 126,455.88-189,628.39-47,514.70

Finding the Fourth Proportional to 126,455.88, 189,628.39 and 47,514.70

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Solution

The fourth proportional to 126,455.88, 189,628.39 and 47,514.70 is: 71,251.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,455.88 : 189,628.39 = 47,514.70 : x
  2. Step 2: Convert to fraction form
    126,455.88/189,628.39 = 47,514.70/x
  3. Step 3: Cross multiply
    126,455.88x = 189,628.39 × 47,514.70
  4. Step 4: Simplify right side
    126,455.88x = 9,010,136,358.76
  5. Step 5: Solve for x
    x = 9,010,136,358.76/126,455.88
  6. Step 6: Final answer
    x = 71,251.22

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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.