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Finding the Fourth Proportional to 146,912, 202,740.18 and 79,844

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Solution

The fourth proportional to 146,912, 202,740.18 and 79,844 is: 110,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,912 : 202,740.18 = 79,844 : x
  2. Step 2: Convert to fraction form
    146,912/202,740.18 = 79,844/x
  3. Step 3: Cross multiply
    146,912x = 202,740.18 × 79,844
  4. Step 4: Simplify right side
    146,912x = 16,187,586,931.92
  5. Step 5: Solve for x
    x = 16,187,586,931.92/146,912
  6. Step 6: Final answer
    x = 110,185.60

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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.