Home / 133,044.16-199,558.95-80,439.52

Finding the Fourth Proportional to 133,044.16, 199,558.95 and 80,439.52

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Solution

The fourth proportional to 133,044.16, 199,558.95 and 80,439.52 is: 120,654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,044.16 : 199,558.95 = 80,439.52 : x
  2. Step 2: Convert to fraction form
    133,044.16/199,558.95 = 80,439.52/x
  3. Step 3: Cross multiply
    133,044.16x = 199,558.95 × 80,439.52
  4. Step 4: Simplify right side
    133,044.16x = 16,052,426,149.70
  5. Step 5: Solve for x
    x = 16,052,426,149.70/133,044.16
  6. Step 6: Final answer
    x = 120,654.87

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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.