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Finding the Fourth Proportional to 125,294.99, 188,035.90 and 50,415.78

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Solution

The fourth proportional to 125,294.99, 188,035.90 and 50,415.78 is: 75,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,294.99 : 188,035.90 = 50,415.78 : x
  2. Step 2: Convert to fraction form
    125,294.99/188,035.90 = 50,415.78/x
  3. Step 3: Cross multiply
    125,294.99x = 188,035.90 × 50,415.78
  4. Step 4: Simplify right side
    125,294.99x = 9,479,975,559.04
  5. Step 5: Solve for x
    x = 9,479,975,559.04/125,294.99
  6. Step 6: Final answer
    x = 75,661.25

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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.