Home / 99,416.43-137,245.50-76,704.39

Finding the Fourth Proportional to 99,416.43, 137,245.50 and 76,704.39

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Solution

The fourth proportional to 99,416.43, 137,245.50 and 76,704.39 is: 105,891.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,416.43 : 137,245.50 = 76,704.39 : x
  2. Step 2: Convert to fraction form
    99,416.43/137,245.50 = 76,704.39/x
  3. Step 3: Cross multiply
    99,416.43x = 137,245.50 × 76,704.39
  4. Step 4: Simplify right side
    99,416.43x = 10,527,332,357.75
  5. Step 5: Solve for x
    x = 10,527,332,357.75/99,416.43
  6. Step 6: Final answer
    x = 105,891.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.