Home / 140,765.22-194,255.71-76,234.25

Finding the Fourth Proportional to 140,765.22, 194,255.71 and 76,234.25

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Solution

The fourth proportional to 140,765.22, 194,255.71 and 76,234.25 is: 105,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,765.22 : 194,255.71 = 76,234.25 : x
  2. Step 2: Convert to fraction form
    140,765.22/194,255.71 = 76,234.25/x
  3. Step 3: Cross multiply
    140,765.22x = 194,255.71 × 76,234.25
  4. Step 4: Simplify right side
    140,765.22x = 14,808,938,655.12
  5. Step 5: Solve for x
    x = 14,808,938,655.12/140,765.22
  6. Step 6: Final answer
    x = 105,203.11

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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.