Home / 97,786.31-135,056.16-65,899.85

Finding the Fourth Proportional to 97,786.31, 135,056.16 and 65,899.85

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Solution

The fourth proportional to 97,786.31, 135,056.16 and 65,899.85 is: 91,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,786.31 : 135,056.16 = 65,899.85 : x
  2. Step 2: Convert to fraction form
    97,786.31/135,056.16 = 65,899.85/x
  3. Step 3: Cross multiply
    97,786.31x = 135,056.16 × 65,899.85
  4. Step 4: Simplify right side
    97,786.31x = 8,900,180,010.30
  5. Step 5: Solve for x
    x = 8,900,180,010.30/97,786.31
  6. Step 6: Final answer
    x = 91,016.63

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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.