Home / 203,904.71-305,860.14-70,789.20

Finding the Fourth Proportional to 203,904.71, 305,860.14 and 70,789.20

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Solution

The fourth proportional to 203,904.71, 305,860.14 and 70,789.20 is: 106,184.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,904.71 : 305,860.14 = 70,789.20 : x
  2. Step 2: Convert to fraction form
    203,904.71/305,860.14 = 70,789.20/x
  3. Step 3: Cross multiply
    203,904.71x = 305,860.14 × 70,789.20
  4. Step 4: Simplify right side
    203,904.71x = 21,651,594,622.49
  5. Step 5: Solve for x
    x = 21,651,594,622.49/203,904.71
  6. Step 6: Final answer
    x = 106,184.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.