Home / 88,140.10-131,917.78-80,260.82

Finding the Fourth Proportional to 88,140.10, 131,917.78 and 80,260.82

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Solution

The fourth proportional to 88,140.10, 131,917.78 and 80,260.82 is: 120,125.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,140.10 : 131,917.78 = 80,260.82 : x
  2. Step 2: Convert to fraction form
    88,140.10/131,917.78 = 80,260.82/x
  3. Step 3: Cross multiply
    88,140.10x = 131,917.78 × 80,260.82
  4. Step 4: Simplify right side
    88,140.10x = 10,587,828,794.08
  5. Step 5: Solve for x
    x = 10,587,828,794.08/88,140.10
  6. Step 6: Final answer
    x = 120,125.00

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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.