Home / 124,034.28-185,903.72-86,390.61

Finding the Fourth Proportional to 124,034.28, 185,903.72 and 86,390.61

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Solution

The fourth proportional to 124,034.28, 185,903.72 and 86,390.61 is: 129,483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,034.28 : 185,903.72 = 86,390.61 : x
  2. Step 2: Convert to fraction form
    124,034.28/185,903.72 = 86,390.61/x
  3. Step 3: Cross multiply
    124,034.28x = 185,903.72 × 86,390.61
  4. Step 4: Simplify right side
    124,034.28x = 16,060,335,772.07
  5. Step 5: Solve for x
    x = 16,060,335,772.07/124,034.28
  6. Step 6: Final answer
    x = 129,483.04

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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.