Home / 126,964.65-175,290.93-81,721.26

Finding the Fourth Proportional to 126,964.65, 175,290.93 and 81,721.26

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Solution

The fourth proportional to 126,964.65, 175,290.93 and 81,721.26 is: 112,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,964.65 : 175,290.93 = 81,721.26 : x
  2. Step 2: Convert to fraction form
    126,964.65/175,290.93 = 81,721.26/x
  3. Step 3: Cross multiply
    126,964.65x = 175,290.93 × 81,721.26
  4. Step 4: Simplify right side
    126,964.65x = 14,324,995,666.17
  5. Step 5: Solve for x
    x = 14,324,995,666.17/126,964.65
  6. Step 6: Final answer
    x = 112,826.65

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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.