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Finding the Fourth Proportional to 131,728.90, 197,010.15 and 110,733.70

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Solution

The fourth proportional to 131,728.90, 197,010.15 and 110,733.70 is: 165,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,728.90 : 197,010.15 = 110,733.70 : x
  2. Step 2: Convert to fraction form
    131,728.90/197,010.15 = 110,733.70/x
  3. Step 3: Cross multiply
    131,728.90x = 197,010.15 × 110,733.70
  4. Step 4: Simplify right side
    131,728.90x = 21,815,662,847.06
  5. Step 5: Solve for x
    x = 21,815,662,847.06/131,728.90
  6. Step 6: Final answer
    x = 165,610.30

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1.5x scale

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.