Home / 185,004.80-255,306.62-100,121.86

Finding the Fourth Proportional to 185,004.80, 255,306.62 and 100,121.86

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Solution

The fourth proportional to 185,004.80, 255,306.62 and 100,121.86 is: 138,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,004.80 : 255,306.62 = 100,121.86 : x
  2. Step 2: Convert to fraction form
    185,004.80/255,306.62 = 100,121.86/x
  3. Step 3: Cross multiply
    185,004.80x = 255,306.62 × 100,121.86
  4. Step 4: Simplify right side
    185,004.80x = 25,561,773,664.71
  5. Step 5: Solve for x
    x = 25,561,773,664.71/185,004.80
  6. Step 6: Final answer
    x = 138,168.16

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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.