Home / 120,931.20-166,877.91-67,214.37

Finding the Fourth Proportional to 120,931.20, 166,877.91 and 67,214.37

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Solution

The fourth proportional to 120,931.20, 166,877.91 and 67,214.37 is: 92,751.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,931.20 : 166,877.91 = 67,214.37 : x
  2. Step 2: Convert to fraction form
    120,931.20/166,877.91 = 67,214.37/x
  3. Step 3: Cross multiply
    120,931.20x = 166,877.91 × 67,214.37
  4. Step 4: Simplify right side
    120,931.20x = 11,216,593,587.57
  5. Step 5: Solve for x
    x = 11,216,593,587.57/120,931.20
  6. Step 6: Final answer
    x = 92,751.86

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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.