Home / 110,910.06-166,129.65-102,978.54

Finding the Fourth Proportional to 110,910.06, 166,129.65 and 102,978.54

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Solution

The fourth proportional to 110,910.06, 166,129.65 and 102,978.54 is: 154,249.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,910.06 : 166,129.65 = 102,978.54 : x
  2. Step 2: Convert to fraction form
    110,910.06/166,129.65 = 102,978.54/x
  3. Step 3: Cross multiply
    110,910.06x = 166,129.65 × 102,978.54
  4. Step 4: Simplify right side
    110,910.06x = 17,107,788,807.71
  5. Step 5: Solve for x
    x = 17,107,788,807.71/110,910.06
  6. Step 6: Final answer
    x = 154,249.21

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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.