Home / 135,965.74-187,632.57-75,542

Finding the Fourth Proportional to 135,965.74, 187,632.57 and 75,542

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Solution

The fourth proportional to 135,965.74, 187,632.57 and 75,542 is: 104,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,965.74 : 187,632.57 = 75,542 : x
  2. Step 2: Convert to fraction form
    135,965.74/187,632.57 = 75,542/x
  3. Step 3: Cross multiply
    135,965.74x = 187,632.57 × 75,542
  4. Step 4: Simplify right side
    135,965.74x = 14,174,139,602.94
  5. Step 5: Solve for x
    x = 14,174,139,602.94/135,965.74
  6. Step 6: Final answer
    x = 104,247.88

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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.