Home / 111,690.30-167,535.12-45,129.66

Finding the Fourth Proportional to 111,690.30, 167,535.12 and 45,129.66

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Solution

The fourth proportional to 111,690.30, 167,535.12 and 45,129.66 is: 67,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,690.30 : 167,535.12 = 45,129.66 : x
  2. Step 2: Convert to fraction form
    111,690.30/167,535.12 = 45,129.66/x
  3. Step 3: Cross multiply
    111,690.30x = 167,535.12 × 45,129.66
  4. Step 4: Simplify right side
    111,690.30x = 7,560,803,003.66
  5. Step 5: Solve for x
    x = 7,560,803,003.66/111,690.30
  6. Step 6: Final answer
    x = 67,694.36

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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.