Home / 133,087.70-199,631.55-39,581.30

Finding the Fourth Proportional to 133,087.70, 199,631.55 and 39,581.30

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Solution

The fourth proportional to 133,087.70, 199,631.55 and 39,581.30 is: 59,371.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,087.70 : 199,631.55 = 39,581.30 : x
  2. Step 2: Convert to fraction form
    133,087.70/199,631.55 = 39,581.30/x
  3. Step 3: Cross multiply
    133,087.70x = 199,631.55 × 39,581.30
  4. Step 4: Simplify right side
    133,087.70x = 7,901,676,270.02
  5. Step 5: Solve for x
    x = 7,901,676,270.02/133,087.70
  6. Step 6: Final answer
    x = 59,371.95

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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.