Home / 204,059.15-306,088.73-128,935.70

Finding the Fourth Proportional to 204,059.15, 306,088.73 and 128,935.70

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Solution

The fourth proportional to 204,059.15, 306,088.73 and 128,935.70 is: 193,403.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,059.15 : 306,088.73 = 128,935.70 : x
  2. Step 2: Convert to fraction form
    204,059.15/306,088.73 = 128,935.70/x
  3. Step 3: Cross multiply
    204,059.15x = 306,088.73 × 128,935.70
  4. Step 4: Simplify right side
    204,059.15x = 39,465,764,664.66
  5. Step 5: Solve for x
    x = 39,465,764,664.66/204,059.15
  6. Step 6: Final answer
    x = 193,403.55

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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.