Home / 185,245.09-255,638.49-100,362.15

Finding the Fourth Proportional to 185,245.09, 255,638.49 and 100,362.15

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Solution

The fourth proportional to 185,245.09, 255,638.49 and 100,362.15 is: 138,499.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,245.09 : 255,638.49 = 100,362.15 : x
  2. Step 2: Convert to fraction form
    185,245.09/255,638.49 = 100,362.15/x
  3. Step 3: Cross multiply
    185,245.09x = 255,638.49 × 100,362.15
  4. Step 4: Simplify right side
    185,245.09x = 25,656,428,479.15
  5. Step 5: Solve for x
    x = 25,656,428,479.15/185,245.09
  6. Step 6: Final answer
    x = 138,499.91

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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.