Home / 131,458.20-197,129.70-52,546.20

Finding the Fourth Proportional to 131,458.20, 197,129.70 and 52,546.20

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Solution

The fourth proportional to 131,458.20, 197,129.70 and 52,546.20 is: 78,796.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,458.20 : 197,129.70 = 52,546.20 : x
  2. Step 2: Convert to fraction form
    131,458.20/197,129.70 = 52,546.20/x
  3. Step 3: Cross multiply
    131,458.20x = 197,129.70 × 52,546.20
  4. Step 4: Simplify right side
    131,458.20x = 10,358,416,642.14
  5. Step 5: Solve for x
    x = 10,358,416,642.14/131,458.20
  6. Step 6: Final answer
    x = 78,796.28

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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.