Home / 206,157.29-309,178.35-73,001.79

Finding the Fourth Proportional to 206,157.29, 309,178.35 and 73,001.79

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Solution

The fourth proportional to 206,157.29, 309,178.35 and 73,001.79 is: 109,482.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,157.29 : 309,178.35 = 73,001.79 : x
  2. Step 2: Convert to fraction form
    206,157.29/309,178.35 = 73,001.79/x
  3. Step 3: Cross multiply
    206,157.29x = 309,178.35 × 73,001.79
  4. Step 4: Simplify right side
    206,157.29x = 22,570,572,979.25
  5. Step 5: Solve for x
    x = 22,570,572,979.25/206,157.29
  6. Step 6: Final answer
    x = 109,482.30

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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.