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Finding the Fourth Proportional to 146,078, 201,588 and 79,010

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Solution

The fourth proportional to 146,078, 201,588 and 79,010 is: 109,033.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,078 : 201,588 = 79,010 : x
  2. Step 2: Convert to fraction form
    146,078/201,588 = 79,010/x
  3. Step 3: Cross multiply
    146,078x = 201,588 × 79,010
  4. Step 4: Simplify right side
    146,078x = 15,927,467,880
  5. Step 5: Solve for x
    x = 15,927,467,880/146,078
  6. Step 6: Final answer
    x = 109,033.99

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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.