Home / 111,020.12-166,492.56-36,121.76

Finding the Fourth Proportional to 111,020.12, 166,492.56 and 36,121.76

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Solution

The fourth proportional to 111,020.12, 166,492.56 and 36,121.76 is: 54,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,020.12 : 166,492.56 = 36,121.76 : x
  2. Step 2: Convert to fraction form
    111,020.12/166,492.56 = 36,121.76/x
  3. Step 3: Cross multiply
    111,020.12x = 166,492.56 × 36,121.76
  4. Step 4: Simplify right side
    111,020.12x = 6,014,004,294.11
  5. Step 5: Solve for x
    x = 6,014,004,294.11/111,020.12
  6. Step 6: Final answer
    x = 54,170.40

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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.