Home / 154,917.60-213,832.08-91,275.96

Finding the Fourth Proportional to 154,917.60, 213,832.08 and 91,275.96

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Solution

The fourth proportional to 154,917.60, 213,832.08 and 91,275.96 is: 125,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,917.60 : 213,832.08 = 91,275.96 : x
  2. Step 2: Convert to fraction form
    154,917.60/213,832.08 = 91,275.96/x
  3. Step 3: Cross multiply
    154,917.60x = 213,832.08 × 91,275.96
  4. Step 4: Simplify right side
    154,917.60x = 19,517,728,380.80
  5. Step 5: Solve for x
    x = 19,517,728,380.80/154,917.60
  6. Step 6: Final answer
    x = 125,987.81

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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.