Home / 126,763.53-175,052.19-81,520.08

Finding the Fourth Proportional to 126,763.53, 175,052.19 and 81,520.08

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Solution

The fourth proportional to 126,763.53, 175,052.19 and 81,520.08 is: 112,573.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,763.53 : 175,052.19 = 81,520.08 : x
  2. Step 2: Convert to fraction form
    126,763.53/175,052.19 = 81,520.08/x
  3. Step 3: Cross multiply
    126,763.53x = 175,052.19 × 81,520.08
  4. Step 4: Simplify right side
    126,763.53x = 14,270,268,532.98
  5. Step 5: Solve for x
    x = 14,270,268,532.98/126,763.53
  6. Step 6: Final answer
    x = 112,573.93

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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.