Home / 135,854.31-204,113.57-128,301.06

Finding the Fourth Proportional to 135,854.31, 204,113.57 and 128,301.06

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Solution

The fourth proportional to 135,854.31, 204,113.57 and 128,301.06 is: 192,765.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,854.31 : 204,113.57 = 128,301.06 : x
  2. Step 2: Convert to fraction form
    135,854.31/204,113.57 = 128,301.06/x
  3. Step 3: Cross multiply
    135,854.31x = 204,113.57 × 128,301.06
  4. Step 4: Simplify right side
    135,854.31x = 26,187,987,391.38
  5. Step 5: Solve for x
    x = 26,187,987,391.38/135,854.31
  6. Step 6: Final answer
    x = 192,765.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.