Home / 104,261.16-156,391.71-90,179.33

Finding the Fourth Proportional to 104,261.16, 156,391.71 and 90,179.33

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Solution

The fourth proportional to 104,261.16, 156,391.71 and 90,179.33 is: 135,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,261.16 : 156,391.71 = 90,179.33 : x
  2. Step 2: Convert to fraction form
    104,261.16/156,391.71 = 90,179.33/x
  3. Step 3: Cross multiply
    104,261.16x = 156,391.71 × 90,179.33
  4. Step 4: Simplify right side
    104,261.16x = 14,103,299,625.35
  5. Step 5: Solve for x
    x = 14,103,299,625.35/104,261.16
  6. Step 6: Final answer
    x = 135,268.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.