Home / 125,687.50-188,425.02-54,556.32

Finding the Fourth Proportional to 125,687.50, 188,425.02 and 54,556.32

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Solution

The fourth proportional to 125,687.50, 188,425.02 and 54,556.32 is: 81,788.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,687.50 : 188,425.02 = 54,556.32 : x
  2. Step 2: Convert to fraction form
    125,687.50/188,425.02 = 54,556.32/x
  3. Step 3: Cross multiply
    125,687.50x = 188,425.02 × 54,556.32
  4. Step 4: Simplify right side
    125,687.50x = 10,279,775,687.13
  5. Step 5: Solve for x
    x = 10,279,775,687.13/125,687.50
  6. Step 6: Final answer
    x = 81,788.37

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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.