Home / 135,821.43-187,424.69-75,389.13

Finding the Fourth Proportional to 135,821.43, 187,424.69 and 75,389.13

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Solution

The fourth proportional to 135,821.43, 187,424.69 and 75,389.13 is: 104,032.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,821.43 : 187,424.69 = 75,389.13 : x
  2. Step 2: Convert to fraction form
    135,821.43/187,424.69 = 75,389.13/x
  3. Step 3: Cross multiply
    135,821.43x = 187,424.69 × 75,389.13
  4. Step 4: Simplify right side
    135,821.43x = 14,129,783,942.67
  5. Step 5: Solve for x
    x = 14,129,783,942.67/135,821.43
  6. Step 6: Final answer
    x = 104,032.07

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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.