Home / 115,517.49-159,415.14-66,466.42

Finding the Fourth Proportional to 115,517.49, 159,415.14 and 66,466.42

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Solution

The fourth proportional to 115,517.49, 159,415.14 and 66,466.42 is: 91,724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,517.49 : 159,415.14 = 66,466.42 : x
  2. Step 2: Convert to fraction form
    115,517.49/159,415.14 = 66,466.42/x
  3. Step 3: Cross multiply
    115,517.49x = 159,415.14 × 66,466.42
  4. Step 4: Simplify right side
    115,517.49x = 10,595,754,023.15
  5. Step 5: Solve for x
    x = 10,595,754,023.15/115,517.49
  6. Step 6: Final answer
    x = 91,724.24

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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.