Home / 136,884.48-188,904.38-75,634.61

Finding the Fourth Proportional to 136,884.48, 188,904.38 and 75,634.61

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Solution

The fourth proportional to 136,884.48, 188,904.38 and 75,634.61 is: 104,377.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,884.48 : 188,904.38 = 75,634.61 : x
  2. Step 2: Convert to fraction form
    136,884.48/188,904.38 = 75,634.61/x
  3. Step 3: Cross multiply
    136,884.48x = 188,904.38 × 75,634.61
  4. Step 4: Simplify right side
    136,884.48x = 14,287,709,108.59
  5. Step 5: Solve for x
    x = 14,287,709,108.59/136,884.48
  6. Step 6: Final answer
    x = 104,377.86

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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.