Home / 140,885.35-194,441.72-87,187.66

Finding the Fourth Proportional to 140,885.35, 194,441.72 and 87,187.66

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Solution

The fourth proportional to 140,885.35, 194,441.72 and 87,187.66 is: 120,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,885.35 : 194,441.72 = 87,187.66 : x
  2. Step 2: Convert to fraction form
    140,885.35/194,441.72 = 87,187.66/x
  3. Step 3: Cross multiply
    140,885.35x = 194,441.72 × 87,187.66
  4. Step 4: Simplify right side
    140,885.35x = 16,952,918,573.18
  5. Step 5: Solve for x
    x = 16,952,918,573.18/140,885.35
  6. Step 6: Final answer
    x = 120,331.31

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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.