Home / 185,261.06-255,660.33-100,378.13

Finding the Fourth Proportional to 185,261.06, 255,660.33 and 100,378.13

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Solution

The fourth proportional to 185,261.06, 255,660.33 and 100,378.13 is: 138,521.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,261.06 : 255,660.33 = 100,378.13 : x
  2. Step 2: Convert to fraction form
    185,261.06/255,660.33 = 100,378.13/x
  3. Step 3: Cross multiply
    185,261.06x = 255,660.33 × 100,378.13
  4. Step 4: Simplify right side
    185,261.06x = 25,662,704,562.28
  5. Step 5: Solve for x
    x = 25,662,704,562.28/185,261.06
  6. Step 6: Final answer
    x = 138,521.85

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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.