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Finding the Fourth Proportional to 101,223.69, 151,927.68 and 53,878.55

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Solution

The fourth proportional to 101,223.69, 151,927.68 and 53,878.55 is: 80,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,223.69 : 151,927.68 = 53,878.55 : x
  2. Step 2: Convert to fraction form
    101,223.69/151,927.68 = 53,878.55/x
  3. Step 3: Cross multiply
    101,223.69x = 151,927.68 × 53,878.55
  4. Step 4: Simplify right side
    101,223.69x = 8,185,643,103.26
  5. Step 5: Solve for x
    x = 8,185,643,103.26/101,223.69
  6. Step 6: Final answer
    x = 80,866.87

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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.