Home / 126,399.84-189,628-47,514.76

Finding the Fourth Proportional to 126,399.84, 189,628 and 47,514.76

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Solution

The fourth proportional to 126,399.84, 189,628 and 47,514.76 is: 71,282.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,399.84 : 189,628 = 47,514.76 : x
  2. Step 2: Convert to fraction form
    126,399.84/189,628 = 47,514.76/x
  3. Step 3: Cross multiply
    126,399.84x = 189,628 × 47,514.76
  4. Step 4: Simplify right side
    126,399.84x = 9,010,128,909.28
  5. Step 5: Solve for x
    x = 9,010,128,909.28/126,399.84
  6. Step 6: Final answer
    x = 71,282.76

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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.