Home / 220,785.40-304,685.31-125,293.69

Finding the Fourth Proportional to 220,785.40, 304,685.31 and 125,293.69

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Solution

The fourth proportional to 220,785.40, 304,685.31 and 125,293.69 is: 172,906.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,785.40 : 304,685.31 = 125,293.69 : x
  2. Step 2: Convert to fraction form
    220,785.40/304,685.31 = 125,293.69/x
  3. Step 3: Cross multiply
    220,785.40x = 304,685.31 × 125,293.69
  4. Step 4: Simplify right side
    220,785.40x = 38,175,146,778.69
  5. Step 5: Solve for x
    x = 38,175,146,778.69/220,785.40
  6. Step 6: Final answer
    x = 172,906.12

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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.