Home / 136,133.00-187,833.51-81,660.30

Finding the Fourth Proportional to 136,133.00, 187,833.51 and 81,660.30

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Solution

The fourth proportional to 136,133.00, 187,833.51 and 81,660.30 is: 112,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,133.00 : 187,833.51 = 81,660.30 : x
  2. Step 2: Convert to fraction form
    136,133.00/187,833.51 = 81,660.30/x
  3. Step 3: Cross multiply
    136,133.00x = 187,833.51 × 81,660.30
  4. Step 4: Simplify right side
    136,133.00x = 15,338,539,429.18
  5. Step 5: Solve for x
    x = 15,338,539,429.18/136,133.00
  6. Step 6: Final answer
    x = 112,673.19

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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.