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Finding the Fourth Proportional to 146,077, 201,586.28 and 79,009

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Solution

The fourth proportional to 146,077, 201,586.28 and 79,009 is: 109,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,077 : 201,586.28 = 79,009 : x
  2. Step 2: Convert to fraction form
    146,077/201,586.28 = 79,009/x
  3. Step 3: Cross multiply
    146,077x = 201,586.28 × 79,009
  4. Step 4: Simplify right side
    146,077x = 15,927,130,396.52
  5. Step 5: Solve for x
    x = 15,927,130,396.52/146,077
  6. Step 6: Final answer
    x = 109,032.43

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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.