Home / 126,158.24-189,023.14-76,133.21

Finding the Fourth Proportional to 126,158.24, 189,023.14 and 76,133.21

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Solution

The fourth proportional to 126,158.24, 189,023.14 and 76,133.21 is: 114,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,158.24 : 189,023.14 = 76,133.21 : x
  2. Step 2: Convert to fraction form
    126,158.24/189,023.14 = 76,133.21/x
  3. Step 3: Cross multiply
    126,158.24x = 189,023.14 × 76,133.21
  4. Step 4: Simplify right side
    126,158.24x = 14,390,938,694.70
  5. Step 5: Solve for x
    x = 14,390,938,694.70/126,158.24
  6. Step 6: Final answer
    x = 114,070.55

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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.