Home / 109,569.62-164,745.66-100,909.10

Finding the Fourth Proportional to 109,569.62, 164,745.66 and 100,909.10

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Solution

The fourth proportional to 109,569.62, 164,745.66 and 100,909.10 is: 151,723.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,569.62 : 164,745.66 = 100,909.10 : x
  2. Step 2: Convert to fraction form
    109,569.62/164,745.66 = 100,909.10/x
  3. Step 3: Cross multiply
    109,569.62x = 164,745.66 × 100,909.10
  4. Step 4: Simplify right side
    109,569.62x = 16,624,336,279.51
  5. Step 5: Solve for x
    x = 16,624,336,279.51/109,569.62
  6. Step 6: Final answer
    x = 151,723.96

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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.