Home / 189,546.92-261,679.81-129,206.22

Finding the Fourth Proportional to 189,546.92, 261,679.81 and 129,206.22

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Solution

The fourth proportional to 189,546.92, 261,679.81 and 129,206.22 is: 178,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,546.92 : 261,679.81 = 129,206.22 : x
  2. Step 2: Convert to fraction form
    189,546.92/261,679.81 = 129,206.22/x
  3. Step 3: Cross multiply
    189,546.92x = 261,679.81 × 129,206.22
  4. Step 4: Simplify right side
    189,546.92x = 33,810,658,777.40
  5. Step 5: Solve for x
    x = 33,810,658,777.40/189,546.92
  6. Step 6: Final answer
    x = 178,376.20

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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.