Home / 189,366.38-261,324.61-103,325.34

Finding the Fourth Proportional to 189,366.38, 261,324.61 and 103,325.34

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Solution

The fourth proportional to 189,366.38, 261,324.61 and 103,325.34 is: 142,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,366.38 : 261,324.61 = 103,325.34 : x
  2. Step 2: Convert to fraction form
    189,366.38/261,324.61 = 103,325.34/x
  3. Step 3: Cross multiply
    189,366.38x = 261,324.61 × 103,325.34
  4. Step 4: Simplify right side
    189,366.38x = 27,001,454,178.62
  5. Step 5: Solve for x
    x = 27,001,454,178.62/189,366.38
  6. Step 6: Final answer
    x = 142,588.43

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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.