Home / 126,119.82-173,946.87-80,802

Finding the Fourth Proportional to 126,119.82, 173,946.87 and 80,802

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Solution

The fourth proportional to 126,119.82, 173,946.87 and 80,802 is: 111,443.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,119.82 : 173,946.87 = 80,802 : x
  2. Step 2: Convert to fraction form
    126,119.82/173,946.87 = 80,802/x
  3. Step 3: Cross multiply
    126,119.82x = 173,946.87 × 80,802
  4. Step 4: Simplify right side
    126,119.82x = 14,055,254,989.74
  5. Step 5: Solve for x
    x = 14,055,254,989.74/126,119.82
  6. Step 6: Final answer
    x = 111,443.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.