Home / 126,763.16-175,051.70-81,519.71

Finding the Fourth Proportional to 126,763.16, 175,051.70 and 81,519.71

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Solution

The fourth proportional to 126,763.16, 175,051.70 and 81,519.71 is: 112,573.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,763.16 : 175,051.70 = 81,519.71 : x
  2. Step 2: Convert to fraction form
    126,763.16/175,051.70 = 81,519.71/x
  3. Step 3: Cross multiply
    126,763.16x = 175,051.70 × 81,519.71
  4. Step 4: Simplify right side
    126,763.16x = 14,270,162,536.15
  5. Step 5: Solve for x
    x = 14,270,162,536.15/126,763.16
  6. Step 6: Final answer
    x = 112,573.43

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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.