Home / 185,915.25-278,876.12-75,107.25

Finding the Fourth Proportional to 185,915.25, 278,876.12 and 75,107.25

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Solution

The fourth proportional to 185,915.25, 278,876.12 and 75,107.25 is: 112,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,915.25 : 278,876.12 = 75,107.25 : x
  2. Step 2: Convert to fraction form
    185,915.25/278,876.12 = 75,107.25/x
  3. Step 3: Cross multiply
    185,915.25x = 278,876.12 × 75,107.25
  4. Step 4: Simplify right side
    185,915.25x = 20,945,618,088.33
  5. Step 5: Solve for x
    x = 20,945,618,088.33/185,915.25
  6. Step 6: Final answer
    x = 112,662.18

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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.