Home / 137,439.16-206,204.87-74,264.93

Finding the Fourth Proportional to 137,439.16, 206,204.87 and 74,264.93

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Solution

The fourth proportional to 137,439.16, 206,204.87 and 74,264.93 is: 111,422.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,439.16 : 206,204.87 = 74,264.93 : x
  2. Step 2: Convert to fraction form
    137,439.16/206,204.87 = 74,264.93/x
  3. Step 3: Cross multiply
    137,439.16x = 206,204.87 × 74,264.93
  4. Step 4: Simplify right side
    137,439.16x = 15,313,790,236.21
  5. Step 5: Solve for x
    x = 15,313,790,236.21/137,439.16
  6. Step 6: Final answer
    x = 111,422.32

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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.