Home / 87,818.60-131,727.90-70,322.60

Finding the Fourth Proportional to 87,818.60, 131,727.90 and 70,322.60

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Solution

The fourth proportional to 87,818.60, 131,727.90 and 70,322.60 is: 105,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,818.60 : 131,727.90 = 70,322.60 : x
  2. Step 2: Convert to fraction form
    87,818.60/131,727.90 = 70,322.60/x
  3. Step 3: Cross multiply
    87,818.60x = 131,727.90 × 70,322.60
  4. Step 4: Simplify right side
    87,818.60x = 9,263,448,420.54
  5. Step 5: Solve for x
    x = 9,263,448,420.54/87,818.60
  6. Step 6: Final answer
    x = 105,483.90

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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.