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Finding the Fourth Proportional to 102,396.80, 153,595.20 and 101,084.60

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Solution

The fourth proportional to 102,396.80, 153,595.20 and 101,084.60 is: 151,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,396.80 : 153,595.20 = 101,084.60 : x
  2. Step 2: Convert to fraction form
    102,396.80/153,595.20 = 101,084.60/x
  3. Step 3: Cross multiply
    102,396.80x = 153,595.20 × 101,084.60
  4. Step 4: Simplify right side
    102,396.80x = 15,526,109,353.92
  5. Step 5: Solve for x
    x = 15,526,109,353.92/102,396.80
  6. Step 6: Final answer
    x = 151,626.90

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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.