Home / 126,759.77-175,047.02-81,516.32

Finding the Fourth Proportional to 126,759.77, 175,047.02 and 81,516.32

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Solution

The fourth proportional to 126,759.77, 175,047.02 and 81,516.32 is: 112,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,759.77 : 175,047.02 = 81,516.32 : x
  2. Step 2: Convert to fraction form
    126,759.77/175,047.02 = 81,516.32/x
  3. Step 3: Cross multiply
    126,759.77x = 175,047.02 × 81,516.32
  4. Step 4: Simplify right side
    126,759.77x = 14,269,190,019.83
  5. Step 5: Solve for x
    x = 14,269,190,019.83/126,759.77
  6. Step 6: Final answer
    x = 112,568.76

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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.