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Finding the Fourth Proportional to 102,752.20, 154,031.10 and 60,664.60

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Solution

The fourth proportional to 102,752.20, 154,031.10 and 60,664.60 is: 90,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,752.20 : 154,031.10 = 60,664.60 : x
  2. Step 2: Convert to fraction form
    102,752.20/154,031.10 = 60,664.60/x
  3. Step 3: Cross multiply
    102,752.20x = 154,031.10 × 60,664.60
  4. Step 4: Simplify right side
    102,752.20x = 9,344,235,069.06
  5. Step 5: Solve for x
    x = 9,344,235,069.06/102,752.20
  6. Step 6: Final answer
    x = 90,939.51

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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.