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Finding the Fourth Proportional to 159,452.84, 220,054.40 and 91,469.36

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Solution

The fourth proportional to 159,452.84, 220,054.40 and 91,469.36 is: 126,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,452.84 : 220,054.40 = 91,469.36 : x
  2. Step 2: Convert to fraction form
    159,452.84/220,054.40 = 91,469.36/x
  3. Step 3: Cross multiply
    159,452.84x = 220,054.40 × 91,469.36
  4. Step 4: Simplify right side
    159,452.84x = 20,128,235,133.18
  5. Step 5: Solve for x
    x = 20,128,235,133.18/159,452.84
  6. Step 6: Final answer
    x = 126,233.16

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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.