Home / 141,850.46-195,753.63-78,189.62

Finding the Fourth Proportional to 141,850.46, 195,753.63 and 78,189.62

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Solution

The fourth proportional to 141,850.46, 195,753.63 and 78,189.62 is: 107,901.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,850.46 : 195,753.63 = 78,189.62 : x
  2. Step 2: Convert to fraction form
    141,850.46/195,753.63 = 78,189.62/x
  3. Step 3: Cross multiply
    141,850.46x = 195,753.63 × 78,189.62
  4. Step 4: Simplify right side
    141,850.46x = 15,305,900,964.55
  5. Step 5: Solve for x
    x = 15,305,900,964.55/141,850.46
  6. Step 6: Final answer
    x = 107,901.67

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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.