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Finding the Fourth Proportional to 117,010.40, 175,515.60 and 87,634.40

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Solution

The fourth proportional to 117,010.40, 175,515.60 and 87,634.40 is: 131,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,010.40 : 175,515.60 = 87,634.40 : x
  2. Step 2: Convert to fraction form
    117,010.40/175,515.60 = 87,634.40/x
  3. Step 3: Cross multiply
    117,010.40x = 175,515.60 × 87,634.40
  4. Step 4: Simplify right side
    117,010.40x = 15,381,204,296.64
  5. Step 5: Solve for x
    x = 15,381,204,296.64/117,010.40
  6. Step 6: Final answer
    x = 131,451.60

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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.