Home / 110,896.70-166,345.05-81,372.20

Finding the Fourth Proportional to 110,896.70, 166,345.05 and 81,372.20

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Solution

The fourth proportional to 110,896.70, 166,345.05 and 81,372.20 is: 122,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,896.70 : 166,345.05 = 81,372.20 : x
  2. Step 2: Convert to fraction form
    110,896.70/166,345.05 = 81,372.20/x
  3. Step 3: Cross multiply
    110,896.70x = 166,345.05 × 81,372.20
  4. Step 4: Simplify right side
    110,896.70x = 13,535,862,677.61
  5. Step 5: Solve for x
    x = 13,535,862,677.61/110,896.70
  6. Step 6: Final answer
    x = 122,058.30

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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.