Home / 126,888.61-175,026.90-81,625.54

Finding the Fourth Proportional to 126,888.61, 175,026.90 and 81,625.54

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Solution

The fourth proportional to 126,888.61, 175,026.90 and 81,625.54 is: 112,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,888.61 : 175,026.90 = 81,625.54 : x
  2. Step 2: Convert to fraction form
    126,888.61/175,026.90 = 81,625.54/x
  3. Step 3: Cross multiply
    126,888.61x = 175,026.90 × 81,625.54
  4. Step 4: Simplify right side
    126,888.61x = 14,286,665,227.03
  5. Step 5: Solve for x
    x = 14,286,665,227.03/126,888.61
  6. Step 6: Final answer
    x = 112,592.18

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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.