Home / 206,642.06-309,667.37-117,711.81

Finding the Fourth Proportional to 206,642.06, 309,667.37 and 117,711.81

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Solution

The fourth proportional to 206,642.06, 309,667.37 and 117,711.81 is: 176,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,642.06 : 309,667.37 = 117,711.81 : x
  2. Step 2: Convert to fraction form
    206,642.06/309,667.37 = 117,711.81/x
  3. Step 3: Cross multiply
    206,642.06x = 309,667.37 × 117,711.81
  4. Step 4: Simplify right side
    206,642.06x = 36,451,506,032.08
  5. Step 5: Solve for x
    x = 36,451,506,032.08/206,642.06
  6. Step 6: Final answer
    x = 176,399.26

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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.