Home / 110,836.10-166,254.15-66,512.90

Finding the Fourth Proportional to 110,836.10, 166,254.15 and 66,512.90

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Solution

The fourth proportional to 110,836.10, 166,254.15 and 66,512.90 is: 99,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,836.10 : 166,254.15 = 66,512.90 : x
  2. Step 2: Convert to fraction form
    110,836.10/166,254.15 = 66,512.90/x
  3. Step 3: Cross multiply
    110,836.10x = 166,254.15 × 66,512.90
  4. Step 4: Simplify right side
    110,836.10x = 11,058,045,653.54
  5. Step 5: Solve for x
    x = 11,058,045,653.54/110,836.10
  6. Step 6: Final answer
    x = 99,769.35

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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.