Home / 207,531.72-286,131.78-135,798.12

Finding the Fourth Proportional to 207,531.72, 286,131.78 and 135,798.12

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Solution

The fourth proportional to 207,531.72, 286,131.78 and 135,798.12 is: 187,229.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,531.72 : 286,131.78 = 135,798.12 : x
  2. Step 2: Convert to fraction form
    207,531.72/286,131.78 = 135,798.12/x
  3. Step 3: Cross multiply
    207,531.72x = 286,131.78 × 135,798.12
  4. Step 4: Simplify right side
    207,531.72x = 38,856,157,796.25
  5. Step 5: Solve for x
    x = 38,856,157,796.25/207,531.72
  6. Step 6: Final answer
    x = 187,229.97

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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.