Home / 206,642.18-309,667.26-117,712.06

Finding the Fourth Proportional to 206,642.18, 309,667.26 and 117,712.06

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Solution

The fourth proportional to 206,642.18, 309,667.26 and 117,712.06 is: 176,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,642.18 : 309,667.26 = 117,712.06 : x
  2. Step 2: Convert to fraction form
    206,642.18/309,667.26 = 117,712.06/x
  3. Step 3: Cross multiply
    206,642.18x = 309,667.26 × 117,712.06
  4. Step 4: Simplify right side
    206,642.18x = 36,451,571,089.16
  5. Step 5: Solve for x
    x = 36,451,571,089.16/206,642.18
  6. Step 6: Final answer
    x = 176,399.47

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1.5x scale

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.