Home / 135,969.76-187,637-75,540.52

Finding the Fourth Proportional to 135,969.76, 187,637 and 75,540.52

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Solution

The fourth proportional to 135,969.76, 187,637 and 75,540.52 is: 104,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,969.76 : 187,637 = 75,540.52 : x
  2. Step 2: Convert to fraction form
    135,969.76/187,637 = 75,540.52/x
  3. Step 3: Cross multiply
    135,969.76x = 187,637 × 75,540.52
  4. Step 4: Simplify right side
    135,969.76x = 14,174,196,551.24
  5. Step 5: Solve for x
    x = 14,174,196,551.24/135,969.76
  6. Step 6: Final answer
    x = 104,245.21

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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.