Home / 166,023.30-248,806.53-71,139.90

Finding the Fourth Proportional to 166,023.30, 248,806.53 and 71,139.90

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Solution

The fourth proportional to 166,023.30, 248,806.53 and 71,139.90 is: 106,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,023.30 : 248,806.53 = 71,139.90 : x
  2. Step 2: Convert to fraction form
    166,023.30/248,806.53 = 71,139.90/x
  3. Step 3: Cross multiply
    166,023.30x = 248,806.53 × 71,139.90
  4. Step 4: Simplify right side
    166,023.30x = 17,700,071,307.85
  5. Step 5: Solve for x
    x = 17,700,071,307.85/166,023.30
  6. Step 6: Final answer
    x = 106,611.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.