Home / 185,398.38-255,850.32-100,515.48

Finding the Fourth Proportional to 185,398.38, 255,850.32 and 100,515.48

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Solution

The fourth proportional to 185,398.38, 255,850.32 and 100,515.48 is: 138,711.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,398.38 : 255,850.32 = 100,515.48 : x
  2. Step 2: Convert to fraction form
    185,398.38/255,850.32 = 100,515.48/x
  3. Step 3: Cross multiply
    185,398.38x = 255,850.32 × 100,515.48
  4. Step 4: Simplify right side
    185,398.38x = 25,716,917,722.95
  5. Step 5: Solve for x
    x = 25,716,917,722.95/185,398.38
  6. Step 6: Final answer
    x = 138,711.66

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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.