Home / 120,947.85-166,900.13-67,230.87

Finding the Fourth Proportional to 120,947.85, 166,900.13 and 67,230.87

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Solution

The fourth proportional to 120,947.85, 166,900.13 and 67,230.87 is: 92,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,947.85 : 166,900.13 = 67,230.87 : x
  2. Step 2: Convert to fraction form
    120,947.85/166,900.13 = 67,230.87/x
  3. Step 3: Cross multiply
    120,947.85x = 166,900.13 × 67,230.87
  4. Step 4: Simplify right side
    120,947.85x = 11,220,840,606.86
  5. Step 5: Solve for x
    x = 11,220,840,606.86/120,947.85
  6. Step 6: Final answer
    x = 92,774.21

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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.