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Finding the Fourth Proportional to 153,371.67, 230,104.48 and 78,544.27

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Solution

The fourth proportional to 153,371.67, 230,104.48 and 78,544.27 is: 117,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,371.67 : 230,104.48 = 78,544.27 : x
  2. Step 2: Convert to fraction form
    153,371.67/230,104.48 = 78,544.27/x
  3. Step 3: Cross multiply
    153,371.67x = 230,104.48 × 78,544.27
  4. Step 4: Simplify right side
    153,371.67x = 18,073,388,405.33
  5. Step 5: Solve for x
    x = 18,073,388,405.33/153,371.67
  6. Step 6: Final answer
    x = 117,840.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.