Home / 135,169.34-186,517.41-74,731.82

Finding the Fourth Proportional to 135,169.34, 186,517.41 and 74,731.82

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Solution

The fourth proportional to 135,169.34, 186,517.41 and 74,731.82 is: 103,120.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,169.34 : 186,517.41 = 74,731.82 : x
  2. Step 2: Convert to fraction form
    135,169.34/186,517.41 = 74,731.82/x
  3. Step 3: Cross multiply
    135,169.34x = 186,517.41 × 74,731.82
  4. Step 4: Simplify right side
    135,169.34x = 13,938,785,510.99
  5. Step 5: Solve for x
    x = 13,938,785,510.99/135,169.34
  6. Step 6: Final answer
    x = 103,120.91

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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.