Home / 136,625.31-188,543.97-76,199.85

Finding the Fourth Proportional to 136,625.31, 188,543.97 and 76,199.85

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Solution

The fourth proportional to 136,625.31, 188,543.97 and 76,199.85 is: 105,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,625.31 : 188,543.97 = 76,199.85 : x
  2. Step 2: Convert to fraction form
    136,625.31/188,543.97 = 76,199.85/x
  3. Step 3: Cross multiply
    136,625.31x = 188,543.97 × 76,199.85
  4. Step 4: Simplify right side
    136,625.31x = 14,367,022,232.40
  5. Step 5: Solve for x
    x = 14,367,022,232.40/136,625.31
  6. Step 6: Final answer
    x = 105,156.37

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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.