Home / 166,023.75-229,112.55-90,572.25

Finding the Fourth Proportional to 166,023.75, 229,112.55 and 90,572.25

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Solution

The fourth proportional to 166,023.75, 229,112.55 and 90,572.25 is: 124,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,023.75 : 229,112.55 = 90,572.25 : x
  2. Step 2: Convert to fraction form
    166,023.75/229,112.55 = 90,572.25/x
  3. Step 3: Cross multiply
    166,023.75x = 229,112.55 × 90,572.25
  4. Step 4: Simplify right side
    166,023.75x = 20,751,239,156.74
  5. Step 5: Solve for x
    x = 20,751,239,156.74/166,023.75
  6. Step 6: Final answer
    x = 124,989.58

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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.