Home / 125,554.14-188,331.21-78,839.82

Finding the Fourth Proportional to 125,554.14, 188,331.21 and 78,839.82

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Solution

The fourth proportional to 125,554.14, 188,331.21 and 78,839.82 is: 118,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,554.14 : 188,331.21 = 78,839.82 : x
  2. Step 2: Convert to fraction form
    125,554.14/188,331.21 = 78,839.82/x
  3. Step 3: Cross multiply
    125,554.14x = 188,331.21 × 78,839.82
  4. Step 4: Simplify right side
    125,554.14x = 14,847,998,696.78
  5. Step 5: Solve for x
    x = 14,847,998,696.78/125,554.14
  6. Step 6: Final answer
    x = 118,259.73

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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.