Home / 128,693.10-192,928.94-62,179.60

Finding the Fourth Proportional to 128,693.10, 192,928.94 and 62,179.60

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Solution

The fourth proportional to 128,693.10, 192,928.94 and 62,179.60 is: 93,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,693.10 : 192,928.94 = 62,179.60 : x
  2. Step 2: Convert to fraction form
    128,693.10/192,928.94 = 62,179.60/x
  3. Step 3: Cross multiply
    128,693.10x = 192,928.94 × 62,179.60
  4. Step 4: Simplify right side
    128,693.10x = 11,996,244,119.32
  5. Step 5: Solve for x
    x = 11,996,244,119.32/128,693.10
  6. Step 6: Final answer
    x = 93,215.90

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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.