Home / 154,914.75-213,749.42-91,229.31

Finding the Fourth Proportional to 154,914.75, 213,749.42 and 91,229.31

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Solution

The fourth proportional to 154,914.75, 213,749.42 and 91,229.31 is: 125,877.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,914.75 : 213,749.42 = 91,229.31 : x
  2. Step 2: Convert to fraction form
    154,914.75/213,749.42 = 91,229.31/x
  3. Step 3: Cross multiply
    154,914.75x = 213,749.42 × 91,229.31
  4. Step 4: Simplify right side
    154,914.75x = 19,500,211,643.35
  5. Step 5: Solve for x
    x = 19,500,211,643.35/154,914.75
  6. Step 6: Final answer
    x = 125,877.05

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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.