Home / 189,432.72-261,369.84-108,883.20

Finding the Fourth Proportional to 189,432.72, 261,369.84 and 108,883.20

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Solution

The fourth proportional to 189,432.72, 261,369.84 and 108,883.20 is: 150,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,432.72 : 261,369.84 = 108,883.20 : x
  2. Step 2: Convert to fraction form
    189,432.72/261,369.84 = 108,883.20/x
  3. Step 3: Cross multiply
    189,432.72x = 261,369.84 × 108,883.20
  4. Step 4: Simplify right side
    189,432.72x = 28,458,784,562.69
  5. Step 5: Solve for x
    x = 28,458,784,562.69/189,432.72
  6. Step 6: Final answer
    x = 150,231.62

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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.