Home / 166,639.06-229,962-91,187.56

Finding the Fourth Proportional to 166,639.06, 229,962 and 91,187.56

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Solution

The fourth proportional to 166,639.06, 229,962 and 91,187.56 is: 125,838.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,639.06 : 229,962 = 91,187.56 : x
  2. Step 2: Convert to fraction form
    166,639.06/229,962 = 91,187.56/x
  3. Step 3: Cross multiply
    166,639.06x = 229,962 × 91,187.56
  4. Step 4: Simplify right side
    166,639.06x = 20,969,673,672.72
  5. Step 5: Solve for x
    x = 20,969,673,672.72/166,639.06
  6. Step 6: Final answer
    x = 125,838.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.