Home / 125,480.10-173,165.58-68,121.78

Finding the Fourth Proportional to 125,480.10, 173,165.58 and 68,121.78

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Solution

The fourth proportional to 125,480.10, 173,165.58 and 68,121.78 is: 94,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,480.10 : 173,165.58 = 68,121.78 : x
  2. Step 2: Convert to fraction form
    125,480.10/173,165.58 = 68,121.78/x
  3. Step 3: Cross multiply
    125,480.10x = 173,165.58 × 68,121.78
  4. Step 4: Simplify right side
    125,480.10x = 11,796,347,544.33
  5. Step 5: Solve for x
    x = 11,796,347,544.33/125,480.10
  6. Step 6: Final answer
    x = 94,009.71

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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.