Home / 159,302.43-238,756.28-80,439.21

Finding the Fourth Proportional to 159,302.43, 238,756.28 and 80,439.21

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Solution

The fourth proportional to 159,302.43, 238,756.28 and 80,439.21 is: 120,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,302.43 : 238,756.28 = 80,439.21 : x
  2. Step 2: Convert to fraction form
    159,302.43/238,756.28 = 80,439.21/x
  3. Step 3: Cross multiply
    159,302.43x = 238,756.28 × 80,439.21
  4. Step 4: Simplify right side
    159,302.43x = 19,205,366,143.54
  5. Step 5: Solve for x
    x = 19,205,366,143.54/159,302.43
  6. Step 6: Final answer
    x = 120,559.15

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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.