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Finding the Fourth Proportional to 125,984.54, 173,859.14 and 69,395.78

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Solution

The fourth proportional to 125,984.54, 173,859.14 and 69,395.78 is: 95,766.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,984.54 : 173,859.14 = 69,395.78 : x
  2. Step 2: Convert to fraction form
    125,984.54/173,859.14 = 69,395.78/x
  3. Step 3: Cross multiply
    125,984.54x = 173,859.14 × 69,395.78
  4. Step 4: Simplify right side
    125,984.54x = 12,065,090,630.43
  5. Step 5: Solve for x
    x = 12,065,090,630.43/125,984.54
  6. Step 6: Final answer
    x = 95,766.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.