Home / 109,517.62-151,202.73-83,974.91

Finding the Fourth Proportional to 109,517.62, 151,202.73 and 83,974.91

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Solution

The fourth proportional to 109,517.62, 151,202.73 and 83,974.91 is: 115,937.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,517.62 : 151,202.73 = 83,974.91 : x
  2. Step 2: Convert to fraction form
    109,517.62/151,202.73 = 83,974.91/x
  3. Step 3: Cross multiply
    109,517.62x = 151,202.73 × 83,974.91
  4. Step 4: Simplify right side
    109,517.62x = 12,697,235,811.57
  5. Step 5: Solve for x
    x = 12,697,235,811.57/109,517.62
  6. Step 6: Final answer
    x = 115,937.84

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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.