Home / 166,408.21-229,643.45-90,956.71

Finding the Fourth Proportional to 166,408.21, 229,643.45 and 90,956.71

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Solution

The fourth proportional to 166,408.21, 229,643.45 and 90,956.71 is: 125,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,408.21 : 229,643.45 = 90,956.71 : x
  2. Step 2: Convert to fraction form
    166,408.21/229,643.45 = 90,956.71/x
  3. Step 3: Cross multiply
    166,408.21x = 229,643.45 × 90,956.71
  4. Step 4: Simplify right side
    166,408.21x = 20,887,612,685.05
  5. Step 5: Solve for x
    x = 20,887,612,685.05/166,408.21
  6. Step 6: Final answer
    x = 125,520.33

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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.