Home / 209,523.75-289,092.35-123,486.17

Finding the Fourth Proportional to 209,523.75, 289,092.35 and 123,486.17

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Solution

The fourth proportional to 209,523.75, 289,092.35 and 123,486.17 is: 170,381.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,523.75 : 289,092.35 = 123,486.17 : x
  2. Step 2: Convert to fraction form
    209,523.75/289,092.35 = 123,486.17/x
  3. Step 3: Cross multiply
    209,523.75x = 289,092.35 × 123,486.17
  4. Step 4: Simplify right side
    209,523.75x = 35,698,905,014.91
  5. Step 5: Solve for x
    x = 35,698,905,014.91/209,523.75
  6. Step 6: Final answer
    x = 170,381.19

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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.