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Finding the Fourth Proportional to 146,940, 202,799.37 and 89,612.58

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Solution

The fourth proportional to 146,940, 202,799.37 and 89,612.58 is: 123,678.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,940 : 202,799.37 = 89,612.58 : x
  2. Step 2: Convert to fraction form
    146,940/202,799.37 = 89,612.58/x
  3. Step 3: Cross multiply
    146,940x = 202,799.37 × 89,612.58
  4. Step 4: Simplify right side
    146,940x = 18,173,374,768.07
  5. Step 5: Solve for x
    x = 18,173,374,768.07/146,940
  6. Step 6: Final answer
    x = 123,678.88

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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.