Home / 125,975.20-173,839.21-78,227.53

Finding the Fourth Proportional to 125,975.20, 173,839.21 and 78,227.53

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Solution

The fourth proportional to 125,975.20, 173,839.21 and 78,227.53 is: 107,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,975.20 : 173,839.21 = 78,227.53 : x
  2. Step 2: Convert to fraction form
    125,975.20/173,839.21 = 78,227.53/x
  3. Step 3: Cross multiply
    125,975.20x = 173,839.21 × 78,227.53
  4. Step 4: Simplify right side
    125,975.20x = 13,599,012,015.45
  5. Step 5: Solve for x
    x = 13,599,012,015.45/125,975.20
  6. Step 6: Final answer
    x = 107,949.91

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1.5x scale

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.