Home / 124,033.28-185,902.22-86,389.61

Finding the Fourth Proportional to 124,033.28, 185,902.22 and 86,389.61

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Solution

The fourth proportional to 124,033.28, 185,902.22 and 86,389.61 is: 129,481.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,033.28 : 185,902.22 = 86,389.61 : x
  2. Step 2: Convert to fraction form
    124,033.28/185,902.22 = 86,389.61/x
  3. Step 3: Cross multiply
    124,033.28x = 185,902.22 × 86,389.61
  4. Step 4: Simplify right side
    124,033.28x = 16,060,019,570.40
  5. Step 5: Solve for x
    x = 16,060,019,570.40/124,033.28
  6. Step 6: Final answer
    x = 129,481.54

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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.