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Finding the Fourth Proportional to 147,252, 220,793.76 and 68,325.60

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Solution

The fourth proportional to 147,252, 220,793.76 and 68,325.60 is: 102,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,252 : 220,793.76 = 68,325.60 : x
  2. Step 2: Convert to fraction form
    147,252/220,793.76 = 68,325.60/x
  3. Step 3: Cross multiply
    147,252x = 220,793.76 × 68,325.60
  4. Step 4: Simplify right side
    147,252x = 15,085,866,128.26
  5. Step 5: Solve for x
    x = 15,085,866,128.26/147,252
  6. Step 6: Final answer
    x = 102,449.31

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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.