Home / 131,079.06-180,896.49-99,192.60

Finding the Fourth Proportional to 131,079.06, 180,896.49 and 99,192.60

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Solution

The fourth proportional to 131,079.06, 180,896.49 and 99,192.60 is: 136,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,079.06 : 180,896.49 = 99,192.60 : x
  2. Step 2: Convert to fraction form
    131,079.06/180,896.49 = 99,192.60/x
  3. Step 3: Cross multiply
    131,079.06x = 180,896.49 × 99,192.60
  4. Step 4: Simplify right side
    131,079.06x = 17,943,593,173.97
  5. Step 5: Solve for x
    x = 17,943,593,173.97/131,079.06
  6. Step 6: Final answer
    x = 136,891.38

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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.