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Finding the Fourth Proportional to 146,035.90, 201,529.56 and 78,967.90

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Solution

The fourth proportional to 146,035.90, 201,529.56 and 78,967.90 is: 108,975.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,035.90 : 201,529.56 = 78,967.90 : x
  2. Step 2: Convert to fraction form
    146,035.90/201,529.56 = 78,967.90/x
  3. Step 3: Cross multiply
    146,035.90x = 201,529.56 × 78,967.90
  4. Step 4: Simplify right side
    146,035.90x = 15,914,366,141.12
  5. Step 5: Solve for x
    x = 15,914,366,141.12/146,035.90
  6. Step 6: Final answer
    x = 108,975.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.