Home / 189,965.40-284,717.70-84,672.60

Finding the Fourth Proportional to 189,965.40, 284,717.70 and 84,672.60

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Solution

The fourth proportional to 189,965.40, 284,717.70 and 84,672.60 is: 126,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,965.40 : 284,717.70 = 84,672.60 : x
  2. Step 2: Convert to fraction form
    189,965.40/284,717.70 = 84,672.60/x
  3. Step 3: Cross multiply
    189,965.40x = 284,717.70 × 84,672.60
  4. Step 4: Simplify right side
    189,965.40x = 24,107,787,925.02
  5. Step 5: Solve for x
    x = 24,107,787,925.02/189,965.40
  6. Step 6: Final answer
    x = 126,906.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.