Home / 185,128.92-255,476.16-108,648.72

Finding the Fourth Proportional to 185,128.92, 255,476.16 and 108,648.72

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Solution

The fourth proportional to 185,128.92, 255,476.16 and 108,648.72 is: 149,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,128.92 : 255,476.16 = 108,648.72 : x
  2. Step 2: Convert to fraction form
    185,128.92/255,476.16 = 108,648.72/x
  3. Step 3: Cross multiply
    185,128.92x = 255,476.16 × 108,648.72
  4. Step 4: Simplify right side
    185,128.92x = 27,757,157,774.52
  5. Step 5: Solve for x
    x = 27,757,157,774.52/185,128.92
  6. Step 6: Final answer
    x = 149,934.21

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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.