Home / 135,921.25-187,571.33-76,305.25

Finding the Fourth Proportional to 135,921.25, 187,571.33 and 76,305.25

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Solution

The fourth proportional to 135,921.25, 187,571.33 and 76,305.25 is: 105,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,921.25 : 187,571.33 = 76,305.25 : x
  2. Step 2: Convert to fraction form
    135,921.25/187,571.33 = 76,305.25/x
  3. Step 3: Cross multiply
    135,921.25x = 187,571.33 × 76,305.25
  4. Step 4: Simplify right side
    135,921.25x = 14,312,677,228.48
  5. Step 5: Solve for x
    x = 14,312,677,228.48/135,921.25
  6. Step 6: Final answer
    x = 105,301.25

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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.