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Finding the Fourth Proportional to 147,609.40, 221,414.10 and 88,414.60

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Solution

The fourth proportional to 147,609.40, 221,414.10 and 88,414.60 is: 132,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,609.40 : 221,414.10 = 88,414.60 : x
  2. Step 2: Convert to fraction form
    147,609.40/221,414.10 = 88,414.60/x
  3. Step 3: Cross multiply
    147,609.40x = 221,414.10 × 88,414.60
  4. Step 4: Simplify right side
    147,609.40x = 19,576,239,085.86
  5. Step 5: Solve for x
    x = 19,576,239,085.86/147,609.40
  6. Step 6: Final answer
    x = 132,621.90

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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.