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Finding the Fourth Proportional to 101,604.40, 152,147.40 and 80,868.40

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Solution

The fourth proportional to 101,604.40, 152,147.40 and 80,868.40 is: 121,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,604.40 : 152,147.40 = 80,868.40 : x
  2. Step 2: Convert to fraction form
    101,604.40/152,147.40 = 80,868.40/x
  3. Step 3: Cross multiply
    101,604.40x = 152,147.40 × 80,868.40
  4. Step 4: Simplify right side
    101,604.40x = 12,303,916,802.16
  5. Step 5: Solve for x
    x = 12,303,916,802.16/101,604.40
  6. Step 6: Final answer
    x = 121,096.30

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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.