Home / 109,645.38-151,314.28-67,195.70

Finding the Fourth Proportional to 109,645.38, 151,314.28 and 67,195.70

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Solution

The fourth proportional to 109,645.38, 151,314.28 and 67,195.70 is: 92,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,645.38 : 151,314.28 = 67,195.70 : x
  2. Step 2: Convert to fraction form
    109,645.38/151,314.28 = 67,195.70/x
  3. Step 3: Cross multiply
    109,645.38x = 151,314.28 × 67,195.70
  4. Step 4: Simplify right side
    109,645.38x = 10,167,668,964.60
  5. Step 5: Solve for x
    x = 10,167,668,964.60/109,645.38
  6. Step 6: Final answer
    x = 92,732.31

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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.