Home / 111,972.35-154,519.17-64,222.65

Finding the Fourth Proportional to 111,972.35, 154,519.17 and 64,222.65

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Solution

The fourth proportional to 111,972.35, 154,519.17 and 64,222.65 is: 88,625.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,972.35 : 154,519.17 = 64,222.65 : x
  2. Step 2: Convert to fraction form
    111,972.35/154,519.17 = 64,222.65/x
  3. Step 3: Cross multiply
    111,972.35x = 154,519.17 × 64,222.65
  4. Step 4: Simplify right side
    111,972.35x = 9,923,630,573.20
  5. Step 5: Solve for x
    x = 9,923,630,573.20/111,972.35
  6. Step 6: Final answer
    x = 88,625.72

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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.