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Finding the Fourth Proportional to 146,130, 201,660.84 and 79,063.44

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Solution

The fourth proportional to 146,130, 201,660.84 and 79,063.44 is: 109,108.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,130 : 201,660.84 = 79,063.44 : x
  2. Step 2: Convert to fraction form
    146,130/201,660.84 = 79,063.44/x
  3. Step 3: Cross multiply
    146,130x = 201,660.84 × 79,063.44
  4. Step 4: Simplify right side
    146,130x = 15,943,999,723.69
  5. Step 5: Solve for x
    x = 15,943,999,723.69/146,130
  6. Step 6: Final answer
    x = 109,108.33

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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.