Home / 109,221.87-163,872.18-38,154.93

Finding the Fourth Proportional to 109,221.87, 163,872.18 and 38,154.93

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Solution

The fourth proportional to 109,221.87, 163,872.18 and 38,154.93 is: 57,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,221.87 : 163,872.18 = 38,154.93 : x
  2. Step 2: Convert to fraction form
    109,221.87/163,872.18 = 38,154.93/x
  3. Step 3: Cross multiply
    109,221.87x = 163,872.18 × 38,154.93
  4. Step 4: Simplify right side
    109,221.87x = 6,252,531,556.85
  5. Step 5: Solve for x
    x = 6,252,531,556.85/109,221.87
  6. Step 6: Final answer
    x = 57,246.15

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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.