Home / 218,934.45-328,531.38-92,567.79

Finding the Fourth Proportional to 218,934.45, 328,531.38 and 92,567.79

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Solution

The fourth proportional to 218,934.45, 328,531.38 and 92,567.79 is: 138,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,934.45 : 328,531.38 = 92,567.79 : x
  2. Step 2: Convert to fraction form
    218,934.45/328,531.38 = 92,567.79/x
  3. Step 3: Cross multiply
    218,934.45x = 328,531.38 × 92,567.79
  4. Step 4: Simplify right side
    218,934.45x = 30,411,423,792.25
  5. Step 5: Solve for x
    x = 30,411,423,792.25/218,934.45
  6. Step 6: Final answer
    x = 138,906.53

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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.