Home / 126,070.68-173,942.96-87,787.20

Finding the Fourth Proportional to 126,070.68, 173,942.96 and 87,787.20

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Solution

The fourth proportional to 126,070.68, 173,942.96 and 87,787.20 is: 121,122.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,070.68 : 173,942.96 = 87,787.20 : x
  2. Step 2: Convert to fraction form
    126,070.68/173,942.96 = 87,787.20/x
  3. Step 3: Cross multiply
    126,070.68x = 173,942.96 × 87,787.20
  4. Step 4: Simplify right side
    126,070.68x = 15,269,965,418.11
  5. Step 5: Solve for x
    x = 15,269,965,418.11/126,070.68
  6. Step 6: Final answer
    x = 121,122.26

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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.