Home / 188,635.90-260,354.53-108,117.39

Finding the Fourth Proportional to 188,635.90, 260,354.53 and 108,117.39

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Solution

The fourth proportional to 188,635.90, 260,354.53 and 108,117.39 is: 149,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,635.90 : 260,354.53 = 108,117.39 : x
  2. Step 2: Convert to fraction form
    188,635.90/260,354.53 = 108,117.39/x
  3. Step 3: Cross multiply
    188,635.90x = 260,354.53 × 108,117.39
  4. Step 4: Simplify right side
    188,635.90x = 28,148,851,717.69
  5. Step 5: Solve for x
    x = 28,148,851,717.69/188,635.90
  6. Step 6: Final answer
    x = 149,223.20

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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.