Home / 124,910.72-187,364.34-30,140.11

Finding the Fourth Proportional to 124,910.72, 187,364.34 and 30,140.11

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Solution

The fourth proportional to 124,910.72, 187,364.34 and 30,140.11 is: 45,209.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,910.72 : 187,364.34 = 30,140.11 : x
  2. Step 2: Convert to fraction form
    124,910.72/187,364.34 = 30,140.11/x
  3. Step 3: Cross multiply
    124,910.72x = 187,364.34 × 30,140.11
  4. Step 4: Simplify right side
    124,910.72x = 5,647,181,817.68
  5. Step 5: Solve for x
    x = 5,647,181,817.68/124,910.72
  6. Step 6: Final answer
    x = 45,209.75

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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.