Home / 160,816.82-221,781.94-100,393.04

Finding the Fourth Proportional to 160,816.82, 221,781.94 and 100,393.04

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Solution

The fourth proportional to 160,816.82, 221,781.94 and 100,393.04 is: 138,451.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,816.82 : 221,781.94 = 100,393.04 : x
  2. Step 2: Convert to fraction form
    160,816.82/221,781.94 = 100,393.04/x
  3. Step 3: Cross multiply
    160,816.82x = 221,781.94 × 100,393.04
  4. Step 4: Simplify right side
    160,816.82x = 22,265,363,173.70
  5. Step 5: Solve for x
    x = 22,265,363,173.70/160,816.82
  6. Step 6: Final answer
    x = 138,451.71

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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.