Home / 129,215.69-193,408.83-69,093.99

Finding the Fourth Proportional to 129,215.69, 193,408.83 and 69,093.99

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Solution

The fourth proportional to 129,215.69, 193,408.83 and 69,093.99 is: 103,419.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,215.69 : 193,408.83 = 69,093.99 : x
  2. Step 2: Convert to fraction form
    129,215.69/193,408.83 = 69,093.99/x
  3. Step 3: Cross multiply
    129,215.69x = 193,408.83 × 69,093.99
  4. Step 4: Simplify right side
    129,215.69x = 13,363,387,765.93
  5. Step 5: Solve for x
    x = 13,363,387,765.93/129,215.69
  6. Step 6: Final answer
    x = 103,419.24

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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.