Home / 209,975.42-289,757.73-123,962.11

Finding the Fourth Proportional to 209,975.42, 289,757.73 and 123,962.11

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Solution

The fourth proportional to 209,975.42, 289,757.73 and 123,962.11 is: 171,062.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,975.42 : 289,757.73 = 123,962.11 : x
  2. Step 2: Convert to fraction form
    209,975.42/289,757.73 = 123,962.11/x
  3. Step 3: Cross multiply
    209,975.42x = 289,757.73 × 123,962.11
  4. Step 4: Simplify right side
    209,975.42x = 35,918,979,599.61
  5. Step 5: Solve for x
    x = 35,918,979,599.61/209,975.42
  6. Step 6: Final answer
    x = 171,062.78

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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.