Home / 131,503.17-197,304.44-78,949.29

Finding the Fourth Proportional to 131,503.17, 197,304.44 and 78,949.29

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Solution

The fourth proportional to 131,503.17, 197,304.44 and 78,949.29 is: 118,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,503.17 : 197,304.44 = 78,949.29 : x
  2. Step 2: Convert to fraction form
    131,503.17/197,304.44 = 78,949.29/x
  3. Step 3: Cross multiply
    131,503.17x = 197,304.44 × 78,949.29
  4. Step 4: Simplify right side
    131,503.17x = 15,577,045,057.10
  5. Step 5: Solve for x
    x = 15,577,045,057.10/131,503.17
  6. Step 6: Final answer
    x = 118,453.76

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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.