Home / 117,178.20-161,702.46-66,193.32

Finding the Fourth Proportional to 117,178.20, 161,702.46 and 66,193.32

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Solution

The fourth proportional to 117,178.20, 161,702.46 and 66,193.32 is: 91,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,178.20 : 161,702.46 = 66,193.32 : x
  2. Step 2: Convert to fraction form
    117,178.20/161,702.46 = 66,193.32/x
  3. Step 3: Cross multiply
    117,178.20x = 161,702.46 × 66,193.32
  4. Step 4: Simplify right side
    117,178.20x = 10,703,622,679.57
  5. Step 5: Solve for x
    x = 10,703,622,679.57/117,178.20
  6. Step 6: Final answer
    x = 91,344.83

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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.