Home / 125,556.28-188,334.10-78,841.96

Finding the Fourth Proportional to 125,556.28, 188,334.10 and 78,841.96

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Solution

The fourth proportional to 125,556.28, 188,334.10 and 78,841.96 is: 118,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,556.28 : 188,334.10 = 78,841.96 : x
  2. Step 2: Convert to fraction form
    125,556.28/188,334.10 = 78,841.96/x
  3. Step 3: Cross multiply
    125,556.28x = 188,334.10 × 78,841.96
  4. Step 4: Simplify right side
    125,556.28x = 14,848,629,578.84
  5. Step 5: Solve for x
    x = 14,848,629,578.84/125,556.28
  6. Step 6: Final answer
    x = 118,262.74

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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.