Home / 136,005.54-187,687.75-75,581.82

Finding the Fourth Proportional to 136,005.54, 187,687.75 and 75,581.82

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Solution

The fourth proportional to 136,005.54, 187,687.75 and 75,581.82 is: 104,302.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,005.54 : 187,687.75 = 75,581.82 : x
  2. Step 2: Convert to fraction form
    136,005.54/187,687.75 = 75,581.82/x
  3. Step 3: Cross multiply
    136,005.54x = 187,687.75 × 75,581.82
  4. Step 4: Simplify right side
    136,005.54x = 14,185,781,736.71
  5. Step 5: Solve for x
    x = 14,185,781,736.71/136,005.54
  6. Step 6: Final answer
    x = 104,302.97

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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.