Home / 86,885.22-119,839.77-79,738.23

Finding the Fourth Proportional to 86,885.22, 119,839.77 and 79,738.23

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Solution

The fourth proportional to 86,885.22, 119,839.77 and 79,738.23 is: 109,982.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,885.22 : 119,839.77 = 79,738.23 : x
  2. Step 2: Convert to fraction form
    86,885.22/119,839.77 = 79,738.23/x
  3. Step 3: Cross multiply
    86,885.22x = 119,839.77 × 79,738.23
  4. Step 4: Simplify right side
    86,885.22x = 9,555,811,143.41
  5. Step 5: Solve for x
    x = 9,555,811,143.41/86,885.22
  6. Step 6: Final answer
    x = 109,982.01

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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.