Home / 185,131.40-255,476.18-109,679.90

Finding the Fourth Proportional to 185,131.40, 255,476.18 and 109,679.90

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Solution

The fourth proportional to 185,131.40, 255,476.18 and 109,679.90 is: 151,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,131.40 : 255,476.18 = 109,679.90 : x
  2. Step 2: Convert to fraction form
    185,131.40/255,476.18 = 109,679.90/x
  3. Step 3: Cross multiply
    185,131.40x = 255,476.18 × 109,679.90
  4. Step 4: Simplify right side
    185,131.40x = 28,020,601,874.78
  5. Step 5: Solve for x
    x = 28,020,601,874.78/185,131.40
  6. Step 6: Final answer
    x = 151,355.21

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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.