Home / 126,868.17-175,028.34-81,539.87

Finding the Fourth Proportional to 126,868.17, 175,028.34 and 81,539.87

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Solution

The fourth proportional to 126,868.17, 175,028.34 and 81,539.87 is: 112,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,868.17 : 175,028.34 = 81,539.87 : x
  2. Step 2: Convert to fraction form
    126,868.17/175,028.34 = 81,539.87/x
  3. Step 3: Cross multiply
    126,868.17x = 175,028.34 × 81,539.87
  4. Step 4: Simplify right side
    126,868.17x = 14,271,787,520.55
  5. Step 5: Solve for x
    x = 14,271,787,520.55/126,868.17
  6. Step 6: Final answer
    x = 112,493.05

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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.