Home / 109,645.13-151,313.94-67,195.46

Finding the Fourth Proportional to 109,645.13, 151,313.94 and 67,195.46

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Solution

The fourth proportional to 109,645.13, 151,313.94 and 67,195.46 is: 92,731.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,645.13 : 151,313.94 = 67,195.46 : x
  2. Step 2: Convert to fraction form
    109,645.13/151,313.94 = 67,195.46/x
  3. Step 3: Cross multiply
    109,645.13x = 151,313.94 × 67,195.46
  4. Step 4: Simplify right side
    109,645.13x = 10,167,609,046.14
  5. Step 5: Solve for x
    x = 10,167,609,046.14/109,645.13
  6. Step 6: Final answer
    x = 92,731.98

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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.