Home / 206,373.15-309,559.79-136,236.06

Finding the Fourth Proportional to 206,373.15, 309,559.79 and 136,236.06

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Solution

The fourth proportional to 206,373.15, 309,559.79 and 136,236.06 is: 204,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,373.15 : 309,559.79 = 136,236.06 : x
  2. Step 2: Convert to fraction form
    206,373.15/309,559.79 = 136,236.06/x
  3. Step 3: Cross multiply
    206,373.15x = 309,559.79 × 136,236.06
  4. Step 4: Simplify right side
    206,373.15x = 42,173,203,895.05
  5. Step 5: Solve for x
    x = 42,173,203,895.05/206,373.15
  6. Step 6: Final answer
    x = 204,354.13

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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.