Home / 83,717.16-125,415.34-80,903.22

Finding the Fourth Proportional to 83,717.16, 125,415.34 and 80,903.22

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Solution

The fourth proportional to 83,717.16, 125,415.34 and 80,903.22 is: 121,199.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,717.16 : 125,415.34 = 80,903.22 : x
  2. Step 2: Convert to fraction form
    83,717.16/125,415.34 = 80,903.22/x
  3. Step 3: Cross multiply
    83,717.16x = 125,415.34 × 80,903.22
  4. Step 4: Simplify right side
    83,717.16x = 10,146,504,843.39
  5. Step 5: Solve for x
    x = 10,146,504,843.39/83,717.16
  6. Step 6: Final answer
    x = 121,199.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.