Home / 129,919.02-179,412.06-122,843.15

Finding the Fourth Proportional to 129,919.02, 179,412.06 and 122,843.15

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Solution

The fourth proportional to 129,919.02, 179,412.06 and 122,843.15 is: 169,640.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,919.02 : 179,412.06 = 122,843.15 : x
  2. Step 2: Convert to fraction form
    129,919.02/179,412.06 = 122,843.15/x
  3. Step 3: Cross multiply
    129,919.02x = 179,412.06 × 122,843.15
  4. Step 4: Simplify right side
    129,919.02x = 22,039,541,701.33
  5. Step 5: Solve for x
    x = 22,039,541,701.33/129,919.02
  6. Step 6: Final answer
    x = 169,640.61

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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.