Home / 126,497.90-189,682.38-42,227.78

Finding the Fourth Proportional to 126,497.90, 189,682.38 and 42,227.78

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Solution

The fourth proportional to 126,497.90, 189,682.38 and 42,227.78 is: 63,320.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,497.90 : 189,682.38 = 42,227.78 : x
  2. Step 2: Convert to fraction form
    126,497.90/189,682.38 = 42,227.78/x
  3. Step 3: Cross multiply
    126,497.90x = 189,682.38 × 42,227.78
  4. Step 4: Simplify right side
    126,497.90x = 8,009,866,049.83
  5. Step 5: Solve for x
    x = 8,009,866,049.83/126,497.90
  6. Step 6: Final answer
    x = 63,320.15

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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.