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Finding the Fourth Proportional to 115,040.51, 158,731.41 and 67,284.53

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Solution

The fourth proportional to 115,040.51, 158,731.41 and 67,284.53 is: 92,838.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,040.51 : 158,731.41 = 67,284.53 : x
  2. Step 2: Convert to fraction form
    115,040.51/158,731.41 = 67,284.53/x
  3. Step 3: Cross multiply
    115,040.51x = 158,731.41 × 67,284.53
  4. Step 4: Simplify right side
    115,040.51x = 10,680,168,318.09
  5. Step 5: Solve for x
    x = 10,680,168,318.09/115,040.51
  6. Step 6: Final answer
    x = 92,838.33

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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.