Home / 120,628.50-166,442.61-66,902.01

Finding the Fourth Proportional to 120,628.50, 166,442.61 and 66,902.01

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Solution

The fourth proportional to 120,628.50, 166,442.61 and 66,902.01 is: 92,311.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,628.50 : 166,442.61 = 66,902.01 : x
  2. Step 2: Convert to fraction form
    120,628.50/166,442.61 = 66,902.01/x
  3. Step 3: Cross multiply
    120,628.50x = 166,442.61 × 66,902.01
  4. Step 4: Simplify right side
    120,628.50x = 11,135,345,158.65
  5. Step 5: Solve for x
    x = 11,135,345,158.65/120,628.50
  6. Step 6: Final answer
    x = 92,311.06

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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.