Home / 87,454.40-131,181.60-69,958.40

Finding the Fourth Proportional to 87,454.40, 131,181.60 and 69,958.40

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Solution

The fourth proportional to 87,454.40, 131,181.60 and 69,958.40 is: 104,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,454.40 : 131,181.60 = 69,958.40 : x
  2. Step 2: Convert to fraction form
    87,454.40/131,181.60 = 69,958.40/x
  3. Step 3: Cross multiply
    87,454.40x = 131,181.60 × 69,958.40
  4. Step 4: Simplify right side
    87,454.40x = 9,177,254,845.44
  5. Step 5: Solve for x
    x = 9,177,254,845.44/87,454.40
  6. Step 6: Final answer
    x = 104,937.60

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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.