Home / 111,382.56-166,702.76-89,091.36

Finding the Fourth Proportional to 111,382.56, 166,702.76 and 89,091.36

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Solution

The fourth proportional to 111,382.56, 166,702.76 and 89,091.36 is: 133,340.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,382.56 : 166,702.76 = 89,091.36 : x
  2. Step 2: Convert to fraction form
    111,382.56/166,702.76 = 89,091.36/x
  3. Step 3: Cross multiply
    111,382.56x = 166,702.76 × 89,091.36
  4. Step 4: Simplify right side
    111,382.56x = 14,851,775,604.15
  5. Step 5: Solve for x
    x = 14,851,775,604.15/111,382.56
  6. Step 6: Final answer
    x = 133,340.22

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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.