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Finding the Fourth Proportional to 101,385, 151,975.44 and 42,253.38

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Solution

The fourth proportional to 101,385, 151,975.44 and 42,253.38 is: 63,337.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,385 : 151,975.44 = 42,253.38 : x
  2. Step 2: Convert to fraction form
    101,385/151,975.44 = 42,253.38/x
  3. Step 3: Cross multiply
    101,385x = 151,975.44 × 42,253.38
  4. Step 4: Simplify right side
    101,385x = 6,421,476,016.99
  5. Step 5: Solve for x
    x = 6,421,476,016.99/101,385
  6. Step 6: Final answer
    x = 63,337.54

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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.