Home / 117,168.24-175,716-42,278.66

Finding the Fourth Proportional to 117,168.24, 175,716 and 42,278.66

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Solution

The fourth proportional to 117,168.24, 175,716 and 42,278.66 is: 63,404.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,168.24 : 175,716 = 42,278.66 : x
  2. Step 2: Convert to fraction form
    117,168.24/175,716 = 42,278.66/x
  3. Step 3: Cross multiply
    117,168.24x = 175,716 × 42,278.66
  4. Step 4: Simplify right side
    117,168.24x = 7,429,037,020.56
  5. Step 5: Solve for x
    x = 7,429,037,020.56/117,168.24
  6. Step 6: Final answer
    x = 63,404.87

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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.