Home / 106,972.85-147,589.24-71,168.93

Finding the Fourth Proportional to 106,972.85, 147,589.24 and 71,168.93

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Solution

The fourth proportional to 106,972.85, 147,589.24 and 71,168.93 is: 98,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,972.85 : 147,589.24 = 71,168.93 : x
  2. Step 2: Convert to fraction form
    106,972.85/147,589.24 = 71,168.93/x
  3. Step 3: Cross multiply
    106,972.85x = 147,589.24 × 71,168.93
  4. Step 4: Simplify right side
    106,972.85x = 10,503,768,061.35
  5. Step 5: Solve for x
    x = 10,503,768,061.35/106,972.85
  6. Step 6: Final answer
    x = 98,190.97

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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.