Home / 126,144.15-189,002.11-76,119.14

Finding the Fourth Proportional to 126,144.15, 189,002.11 and 76,119.14

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Solution

The fourth proportional to 126,144.15, 189,002.11 and 76,119.14 is: 114,049.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,144.15 : 189,002.11 = 76,119.14 : x
  2. Step 2: Convert to fraction form
    126,144.15/189,002.11 = 76,119.14/x
  3. Step 3: Cross multiply
    126,144.15x = 189,002.11 × 76,119.14
  4. Step 4: Simplify right side
    126,144.15x = 14,386,678,071.39
  5. Step 5: Solve for x
    x = 14,386,678,071.39/126,144.15
  6. Step 6: Final answer
    x = 114,049.51

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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.