Home / 128,288.36-176,922.02-80,546.92

Finding the Fourth Proportional to 128,288.36, 176,922.02 and 80,546.92

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Solution

The fourth proportional to 128,288.36, 176,922.02 and 80,546.92 is: 111,081.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,288.36 : 176,922.02 = 80,546.92 : x
  2. Step 2: Convert to fraction form
    128,288.36/176,922.02 = 80,546.92/x
  3. Step 3: Cross multiply
    128,288.36x = 176,922.02 × 80,546.92
  4. Step 4: Simplify right side
    128,288.36x = 14,250,523,791.18
  5. Step 5: Solve for x
    x = 14,250,523,791.18/128,288.36
  6. Step 6: Final answer
    x = 111,081.97

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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.