Home / 114,579.10-171,868.65-109,135.90

Finding the Fourth Proportional to 114,579.10, 171,868.65 and 109,135.90

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Solution

The fourth proportional to 114,579.10, 171,868.65 and 109,135.90 is: 163,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,579.10 : 171,868.65 = 109,135.90 : x
  2. Step 2: Convert to fraction form
    114,579.10/171,868.65 = 109,135.90/x
  3. Step 3: Cross multiply
    114,579.10x = 171,868.65 × 109,135.90
  4. Step 4: Simplify right side
    114,579.10x = 18,757,039,799.54
  5. Step 5: Solve for x
    x = 18,757,039,799.54/114,579.10
  6. Step 6: Final answer
    x = 163,703.85

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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.