Home / 125,556.25-188,334.38-55,421.59

Finding the Fourth Proportional to 125,556.25, 188,334.38 and 55,421.59

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Solution

The fourth proportional to 125,556.25, 188,334.38 and 55,421.59 is: 83,132.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,556.25 : 188,334.38 = 55,421.59 : x
  2. Step 2: Convert to fraction form
    125,556.25/188,334.38 = 55,421.59/x
  3. Step 3: Cross multiply
    125,556.25x = 188,334.38 × 55,421.59
  4. Step 4: Simplify right side
    125,556.25x = 10,437,790,043.32
  5. Step 5: Solve for x
    x = 10,437,790,043.32/125,556.25
  6. Step 6: Final answer
    x = 83,132.38

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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.