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Finding the Fourth Proportional to 146,120, 201,645.60 and 79,052

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Solution

The fourth proportional to 146,120, 201,645.60 and 79,052 is: 109,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,120 : 201,645.60 = 79,052 : x
  2. Step 2: Convert to fraction form
    146,120/201,645.60 = 79,052/x
  3. Step 3: Cross multiply
    146,120x = 201,645.60 × 79,052
  4. Step 4: Simplify right side
    146,120x = 15,940,487,971.20
  5. Step 5: Solve for x
    x = 15,940,487,971.20/146,120
  6. Step 6: Final answer
    x = 109,091.76

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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.