Home / 126,809.78-175,002.77-70,221.16

Finding the Fourth Proportional to 126,809.78, 175,002.77 and 70,221.16

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Solution

The fourth proportional to 126,809.78, 175,002.77 and 70,221.16 is: 96,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,809.78 : 175,002.77 = 70,221.16 : x
  2. Step 2: Convert to fraction form
    126,809.78/175,002.77 = 70,221.16/x
  3. Step 3: Cross multiply
    126,809.78x = 175,002.77 × 70,221.16
  4. Step 4: Simplify right side
    126,809.78x = 12,288,896,286.49
  5. Step 5: Solve for x
    x = 12,288,896,286.49/126,809.78
  6. Step 6: Final answer
    x = 96,908.11

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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.