Home / 160,219.62-221,212.62-99,882.72

Finding the Fourth Proportional to 160,219.62, 221,212.62 and 99,882.72

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Solution

The fourth proportional to 160,219.62, 221,212.62 and 99,882.72 is: 137,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,219.62 : 221,212.62 = 99,882.72 : x
  2. Step 2: Convert to fraction form
    160,219.62/221,212.62 = 99,882.72/x
  3. Step 3: Cross multiply
    160,219.62x = 221,212.62 × 99,882.72
  4. Step 4: Simplify right side
    160,219.62x = 22,095,318,183.93
  5. Step 5: Solve for x
    x = 22,095,318,183.93/160,219.62
  6. Step 6: Final answer
    x = 137,906.44

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1.5x scale

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.