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Finding the Fourth Proportional to 115,504.95, 159,395.52 and 67,749.12

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Solution

The fourth proportional to 115,504.95, 159,395.52 and 67,749.12 is: 93,493.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,504.95 : 159,395.52 = 67,749.12 : x
  2. Step 2: Convert to fraction form
    115,504.95/159,395.52 = 67,749.12/x
  3. Step 3: Cross multiply
    115,504.95x = 159,395.52 × 67,749.12
  4. Step 4: Simplify right side
    115,504.95x = 10,798,906,211.94
  5. Step 5: Solve for x
    x = 10,798,906,211.94/115,504.95
  6. Step 6: Final answer
    x = 93,493.02

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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.