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Finding the Fourth Proportional to 146,407, 202,041.66 and 79,339

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Solution

The fourth proportional to 146,407, 202,041.66 and 79,339 is: 109,487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,407 : 202,041.66 = 79,339 : x
  2. Step 2: Convert to fraction form
    146,407/202,041.66 = 79,339/x
  3. Step 3: Cross multiply
    146,407x = 202,041.66 × 79,339
  4. Step 4: Simplify right side
    146,407x = 16,029,783,262.74
  5. Step 5: Solve for x
    x = 16,029,783,262.74/146,407
  6. Step 6: Final answer
    x = 109,487.82

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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.