Home / 166,112.12-229,231.52-90,661.16

Finding the Fourth Proportional to 166,112.12, 229,231.52 and 90,661.16

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Solution

The fourth proportional to 166,112.12, 229,231.52 and 90,661.16 is: 125,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,112.12 : 229,231.52 = 90,661.16 : x
  2. Step 2: Convert to fraction form
    166,112.12/229,231.52 = 90,661.16/x
  3. Step 3: Cross multiply
    166,112.12x = 229,231.52 × 90,661.16
  4. Step 4: Simplify right side
    166,112.12x = 20,782,395,511.76
  5. Step 5: Solve for x
    x = 20,782,395,511.76/166,112.12
  6. Step 6: Final answer
    x = 125,110.65

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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.