Home / 87,214.40-130,975.20-84,449.60

Finding the Fourth Proportional to 87,214.40, 130,975.20 and 84,449.60

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Solution

The fourth proportional to 87,214.40, 130,975.20 and 84,449.60 is: 126,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,214.40 : 130,975.20 = 84,449.60 : x
  2. Step 2: Convert to fraction form
    87,214.40/130,975.20 = 84,449.60/x
  3. Step 3: Cross multiply
    87,214.40x = 130,975.20 × 84,449.60
  4. Step 4: Simplify right side
    87,214.40x = 11,060,803,249.92
  5. Step 5: Solve for x
    x = 11,060,803,249.92/87,214.40
  6. Step 6: Final answer
    x = 126,823.13

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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.