Home / 126,133.89-173,966.31-80,816.10

Finding the Fourth Proportional to 126,133.89, 173,966.31 and 80,816.10

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Solution

The fourth proportional to 126,133.89, 173,966.31 and 80,816.10 is: 111,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,133.89 : 173,966.31 = 80,816.10 : x
  2. Step 2: Convert to fraction form
    126,133.89/173,966.31 = 80,816.10/x
  3. Step 3: Cross multiply
    126,133.89x = 173,966.31 × 80,816.10
  4. Step 4: Simplify right side
    126,133.89x = 14,059,278,705.59
  5. Step 5: Solve for x
    x = 14,059,278,705.59/126,133.89
  6. Step 6: Final answer
    x = 111,463.13

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1.5x scale

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.