Home / 203,569.88-305,356.77-77,176.13

Finding the Fourth Proportional to 203,569.88, 305,356.77 and 77,176.13

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Solution

The fourth proportional to 203,569.88, 305,356.77 and 77,176.13 is: 115,764.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,569.88 : 305,356.77 = 77,176.13 : x
  2. Step 2: Convert to fraction form
    203,569.88/305,356.77 = 77,176.13/x
  3. Step 3: Cross multiply
    203,569.88x = 305,356.77 × 77,176.13
  4. Step 4: Simplify right side
    203,569.88x = 23,566,252,251.12
  5. Step 5: Solve for x
    x = 23,566,252,251.12/203,569.88
  6. Step 6: Final answer
    x = 115,764.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.