Home / 109,272.78-150,795-61,530.84

Finding the Fourth Proportional to 109,272.78, 150,795 and 61,530.84

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Solution

The fourth proportional to 109,272.78, 150,795 and 61,530.84 is: 84,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,272.78 : 150,795 = 61,530.84 : x
  2. Step 2: Convert to fraction form
    109,272.78/150,795 = 61,530.84/x
  3. Step 3: Cross multiply
    109,272.78x = 150,795 × 61,530.84
  4. Step 4: Simplify right side
    109,272.78x = 9,278,543,017.80
  5. Step 5: Solve for x
    x = 9,278,543,017.80/109,272.78
  6. Step 6: Final answer
    x = 84,911.75

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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.