Home / 126,864.09-174,988.04-81,599.36

Finding the Fourth Proportional to 126,864.09, 174,988.04 and 81,599.36

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Solution

The fourth proportional to 126,864.09, 174,988.04 and 81,599.36 is: 112,552.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,864.09 : 174,988.04 = 81,599.36 : x
  2. Step 2: Convert to fraction form
    126,864.09/174,988.04 = 81,599.36/x
  3. Step 3: Cross multiply
    126,864.09x = 174,988.04 × 81,599.36
  4. Step 4: Simplify right side
    126,864.09x = 14,278,910,788.72
  5. Step 5: Solve for x
    x = 14,278,910,788.72/126,864.09
  6. Step 6: Final answer
    x = 112,552.82

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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.