Home / 281,330.75-422,033.18-91,724.54

Finding the Fourth Proportional to 281,330.75, 422,033.18 and 91,724.54

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Solution

The fourth proportional to 281,330.75, 422,033.18 and 91,724.54 is: 137,598.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,330.75 : 422,033.18 = 91,724.54 : x
  2. Step 2: Convert to fraction form
    281,330.75/422,033.18 = 91,724.54/x
  3. Step 3: Cross multiply
    281,330.75x = 422,033.18 × 91,724.54
  4. Step 4: Simplify right side
    281,330.75x = 38,710,796,731.45
  5. Step 5: Solve for x
    x = 38,710,796,731.45/281,330.75
  6. Step 6: Final answer
    x = 137,598.88

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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.