Home / 135,834.10-187,442.04-75,401.76

Finding the Fourth Proportional to 135,834.10, 187,442.04 and 75,401.76

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Solution

The fourth proportional to 135,834.10, 187,442.04 and 75,401.76 is: 104,049.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,834.10 : 187,442.04 = 75,401.76 : x
  2. Step 2: Convert to fraction form
    135,834.10/187,442.04 = 75,401.76/x
  3. Step 3: Cross multiply
    135,834.10x = 187,442.04 × 75,401.76
  4. Step 4: Simplify right side
    135,834.10x = 14,133,459,713.99
  5. Step 5: Solve for x
    x = 14,133,459,713.99/135,834.10
  6. Step 6: Final answer
    x = 104,049.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.