Home / 220,933.31-304,869.25-124,129.61

Finding the Fourth Proportional to 220,933.31, 304,869.25 and 124,129.61

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Solution

The fourth proportional to 220,933.31, 304,869.25 and 124,129.61 is: 171,288.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,933.31 : 304,869.25 = 124,129.61 : x
  2. Step 2: Convert to fraction form
    220,933.31/304,869.25 = 124,129.61/x
  3. Step 3: Cross multiply
    220,933.31x = 304,869.25 × 124,129.61
  4. Step 4: Simplify right side
    220,933.31x = 37,843,301,103.49
  5. Step 5: Solve for x
    x = 37,843,301,103.49/220,933.31
  6. Step 6: Final answer
    x = 171,288.35

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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.