Home / 116,754.32-161,122.20-66,453.68

Finding the Fourth Proportional to 116,754.32, 161,122.20 and 66,453.68

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Solution

The fourth proportional to 116,754.32, 161,122.20 and 66,453.68 is: 91,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,754.32 : 161,122.20 = 66,453.68 : x
  2. Step 2: Convert to fraction form
    116,754.32/161,122.20 = 66,453.68/x
  3. Step 3: Cross multiply
    116,754.32x = 161,122.20 × 66,453.68
  4. Step 4: Simplify right side
    116,754.32x = 10,707,163,119.70
  5. Step 5: Solve for x
    x = 10,707,163,119.70/116,754.32
  6. Step 6: Final answer
    x = 91,706.78

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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.