Home / 431,961.66-648,066.84-132,486.18

Finding the Fourth Proportional to 431,961.66, 648,066.84 and 132,486.18

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Solution

The fourth proportional to 431,961.66, 648,066.84 and 132,486.18 is: 198,767.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,961.66 : 648,066.84 = 132,486.18 : x
  2. Step 2: Convert to fraction form
    431,961.66/648,066.84 = 132,486.18/x
  3. Step 3: Cross multiply
    431,961.66x = 648,066.84 × 132,486.18
  4. Step 4: Simplify right side
    431,961.66x = 85,859,900,016.27
  5. Step 5: Solve for x
    x = 85,859,900,016.27/431,961.66
  6. Step 6: Final answer
    x = 198,767.41

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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.