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Finding the Fourth Proportional to 114,963.20, 171,429.52 and 100,980.44

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Solution

The fourth proportional to 114,963.20, 171,429.52 and 100,980.44 is: 150,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,963.20 : 171,429.52 = 100,980.44 : x
  2. Step 2: Convert to fraction form
    114,963.20/171,429.52 = 100,980.44/x
  3. Step 3: Cross multiply
    114,963.20x = 171,429.52 × 100,980.44
  4. Step 4: Simplify right side
    114,963.20x = 17,311,028,358.59
  5. Step 5: Solve for x
    x = 17,311,028,358.59/114,963.20
  6. Step 6: Final answer
    x = 150,578.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.