Home / 126,079.70-173,999.49-72,382.10

Finding the Fourth Proportional to 126,079.70, 173,999.49 and 72,382.10

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Solution

The fourth proportional to 126,079.70, 173,999.49 and 72,382.10 is: 99,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,079.70 : 173,999.49 = 72,382.10 : x
  2. Step 2: Convert to fraction form
    126,079.70/173,999.49 = 72,382.10/x
  3. Step 3: Cross multiply
    126,079.70x = 173,999.49 × 72,382.10
  4. Step 4: Simplify right side
    126,079.70x = 12,594,448,485.13
  5. Step 5: Solve for x
    x = 12,594,448,485.13/126,079.70
  6. Step 6: Final answer
    x = 99,892.75

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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.