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Finding the Fourth Proportional to 138,405, 207,446.20 and 63,533.04

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Solution

The fourth proportional to 138,405, 207,446.20 and 63,533.04 is: 95,225.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,405 : 207,446.20 = 63,533.04 : x
  2. Step 2: Convert to fraction form
    138,405/207,446.20 = 63,533.04/x
  3. Step 3: Cross multiply
    138,405x = 207,446.20 × 63,533.04
  4. Step 4: Simplify right side
    138,405x = 13,179,687,722.45
  5. Step 5: Solve for x
    x = 13,179,687,722.45/138,405
  6. Step 6: Final answer
    x = 95,225.52

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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.