Home / 120,883.72-166,816.50-67,168.87

Finding the Fourth Proportional to 120,883.72, 166,816.50 and 67,168.87

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Solution

The fourth proportional to 120,883.72, 166,816.50 and 67,168.87 is: 92,691.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,883.72 : 166,816.50 = 67,168.87 : x
  2. Step 2: Convert to fraction form
    120,883.72/166,816.50 = 67,168.87/x
  3. Step 3: Cross multiply
    120,883.72x = 166,816.50 × 67,168.87
  4. Step 4: Simplify right side
    120,883.72x = 11,204,875,466.51
  5. Step 5: Solve for x
    x = 11,204,875,466.51/120,883.72
  6. Step 6: Final answer
    x = 92,691.36

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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.