Home / 135,606.28-187,119.36-75,176.36

Finding the Fourth Proportional to 135,606.28, 187,119.36 and 75,176.36

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Solution

The fourth proportional to 135,606.28, 187,119.36 and 75,176.36 is: 103,733.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,606.28 : 187,119.36 = 75,176.36 : x
  2. Step 2: Convert to fraction form
    135,606.28/187,119.36 = 75,176.36/x
  3. Step 3: Cross multiply
    135,606.28x = 187,119.36 × 75,176.36
  4. Step 4: Simplify right side
    135,606.28x = 14,066,952,370.33
  5. Step 5: Solve for x
    x = 14,066,952,370.33/135,606.28
  6. Step 6: Final answer
    x = 103,733.78

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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.