Home / 206,155.52-309,339.09-98,207.15

Finding the Fourth Proportional to 206,155.52, 309,339.09 and 98,207.15

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Solution

The fourth proportional to 206,155.52, 309,339.09 and 98,207.15 is: 147,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,155.52 : 309,339.09 = 98,207.15 : x
  2. Step 2: Convert to fraction form
    206,155.52/309,339.09 = 98,207.15/x
  3. Step 3: Cross multiply
    206,155.52x = 309,339.09 × 98,207.15
  4. Step 4: Simplify right side
    206,155.52x = 30,379,308,865.80
  5. Step 5: Solve for x
    x = 30,379,308,865.80/206,155.52
  6. Step 6: Final answer
    x = 147,361.13

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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.