Home / 98,103.38-147,242.58-66,960.50

Finding the Fourth Proportional to 98,103.38, 147,242.58 and 66,960.50

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Solution

The fourth proportional to 98,103.38, 147,242.58 and 66,960.50 is: 100,500.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,103.38 : 147,242.58 = 66,960.50 : x
  2. Step 2: Convert to fraction form
    98,103.38/147,242.58 = 66,960.50/x
  3. Step 3: Cross multiply
    98,103.38x = 147,242.58 × 66,960.50
  4. Step 4: Simplify right side
    98,103.38x = 9,859,436,778.09
  5. Step 5: Solve for x
    x = 9,859,436,778.09/98,103.38
  6. Step 6: Final answer
    x = 100,500.48

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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.