Home / 133,035.40-199,562.70-80,331.40

Finding the Fourth Proportional to 133,035.40, 199,562.70 and 80,331.40

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Solution

The fourth proportional to 133,035.40, 199,562.70 and 80,331.40 is: 120,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,035.40 : 199,562.70 = 80,331.40 : x
  2. Step 2: Convert to fraction form
    133,035.40/199,562.70 = 80,331.40/x
  3. Step 3: Cross multiply
    133,035.40x = 199,562.70 × 80,331.40
  4. Step 4: Simplify right side
    133,035.40x = 16,031,151,078.78
  5. Step 5: Solve for x
    x = 16,031,151,078.78/133,035.40
  6. Step 6: Final answer
    x = 120,502.90

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1.5x scale

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.