Home / 218,521.20-327,551.40-124,825.20

Finding the Fourth Proportional to 218,521.20, 327,551.40 and 124,825.20

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Solution

The fourth proportional to 218,521.20, 327,551.40 and 124,825.20 is: 187,106.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,521.20 : 327,551.40 = 124,825.20 : x
  2. Step 2: Convert to fraction form
    218,521.20/327,551.40 = 124,825.20/x
  3. Step 3: Cross multiply
    218,521.20x = 327,551.40 × 124,825.20
  4. Step 4: Simplify right side
    218,521.20x = 40,886,669,015.28
  5. Step 5: Solve for x
    x = 40,886,669,015.28/218,521.20
  6. Step 6: Final answer
    x = 187,106.19

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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.