Home / 135,834.05-187,442.57-75,401.17

Finding the Fourth Proportional to 135,834.05, 187,442.57 and 75,401.17

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Solution

The fourth proportional to 135,834.05, 187,442.57 and 75,401.17 is: 104,048.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,834.05 : 187,442.57 = 75,401.17 : x
  2. Step 2: Convert to fraction form
    135,834.05/187,442.57 = 75,401.17/x
  3. Step 3: Cross multiply
    135,834.05x = 187,442.57 × 75,401.17
  4. Step 4: Simplify right side
    135,834.05x = 14,133,389,085.81
  5. Step 5: Solve for x
    x = 14,133,389,085.81/135,834.05
  6. Step 6: Final answer
    x = 104,048.94

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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.