Home / 204,056.40-306,084.60-128,932.95

Finding the Fourth Proportional to 204,056.40, 306,084.60 and 128,932.95

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Solution

The fourth proportional to 204,056.40, 306,084.60 and 128,932.95 is: 193,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,056.40 : 306,084.60 = 128,932.95 : x
  2. Step 2: Convert to fraction form
    204,056.40/306,084.60 = 128,932.95/x
  3. Step 3: Cross multiply
    204,056.40x = 306,084.60 × 128,932.95
  4. Step 4: Simplify right side
    204,056.40x = 39,464,390,427.57
  5. Step 5: Solve for x
    x = 39,464,390,427.57/204,056.40
  6. Step 6: Final answer
    x = 193,399.43

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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.