Home / 78,191.31-117,202.98-33,174.66

Finding the Fourth Proportional to 78,191.31, 117,202.98 and 33,174.66

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Solution

The fourth proportional to 78,191.31, 117,202.98 and 33,174.66 is: 49,726.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,191.31 : 117,202.98 = 33,174.66 : x
  2. Step 2: Convert to fraction form
    78,191.31/117,202.98 = 33,174.66/x
  3. Step 3: Cross multiply
    78,191.31x = 117,202.98 × 33,174.66
  4. Step 4: Simplify right side
    78,191.31x = 3,888,169,576.40
  5. Step 5: Solve for x
    x = 3,888,169,576.40/78,191.31
  6. Step 6: Final answer
    x = 49,726.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.