Home / 204,057.40-306,086.10-128,933.95

Finding the Fourth Proportional to 204,057.40, 306,086.10 and 128,933.95

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Solution

The fourth proportional to 204,057.40, 306,086.10 and 128,933.95 is: 193,400.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,057.40 : 306,086.10 = 128,933.95 : x
  2. Step 2: Convert to fraction form
    204,057.40/306,086.10 = 128,933.95/x
  3. Step 3: Cross multiply
    204,057.40x = 306,086.10 × 128,933.95
  4. Step 4: Simplify right side
    204,057.40x = 39,464,889,913.10
  5. Step 5: Solve for x
    x = 39,464,889,913.10/204,057.40
  6. Step 6: Final answer
    x = 193,400.93

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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.