Home / 120,641.19-166,504.80-66,943.50

Finding the Fourth Proportional to 120,641.19, 166,504.80 and 66,943.50

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Solution

The fourth proportional to 120,641.19, 166,504.80 and 66,943.50 is: 92,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,641.19 : 166,504.80 = 66,943.50 : x
  2. Step 2: Convert to fraction form
    120,641.19/166,504.80 = 66,943.50/x
  3. Step 3: Cross multiply
    120,641.19x = 166,504.80 × 66,943.50
  4. Step 4: Simplify right side
    120,641.19x = 11,146,414,078.80
  5. Step 5: Solve for x
    x = 11,146,414,078.80/120,641.19
  6. Step 6: Final answer
    x = 92,393.10

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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.