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Finding the Fourth Proportional to 102,942.90, 154,195.65 and 63,576.90

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Solution

The fourth proportional to 102,942.90, 154,195.65 and 63,576.90 is: 95,230.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,942.90 : 154,195.65 = 63,576.90 : x
  2. Step 2: Convert to fraction form
    102,942.90/154,195.65 = 63,576.90/x
  3. Step 3: Cross multiply
    102,942.90x = 154,195.65 × 63,576.90
  4. Step 4: Simplify right side
    102,942.90x = 9,803,281,420.49
  5. Step 5: Solve for x
    x = 9,803,281,420.49/102,942.90
  6. Step 6: Final answer
    x = 95,230.28

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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.