Home / 166,110.12-229,228.76-90,659.16

Finding the Fourth Proportional to 166,110.12, 229,228.76 and 90,659.16

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Solution

The fourth proportional to 166,110.12, 229,228.76 and 90,659.16 is: 125,107.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,110.12 : 229,228.76 = 90,659.16 : x
  2. Step 2: Convert to fraction form
    166,110.12/229,228.76 = 90,659.16/x
  3. Step 3: Cross multiply
    166,110.12x = 229,228.76 × 90,659.16
  4. Step 4: Simplify right side
    166,110.12x = 20,781,686,829.44
  5. Step 5: Solve for x
    x = 20,781,686,829.44/166,110.12
  6. Step 6: Final answer
    x = 125,107.89

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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.