Home / 128,764.67-193,147.10-40,018.24

Finding the Fourth Proportional to 128,764.67, 193,147.10 and 40,018.24

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Solution

The fourth proportional to 128,764.67, 193,147.10 and 40,018.24 is: 60,027.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,764.67 : 193,147.10 = 40,018.24 : x
  2. Step 2: Convert to fraction form
    128,764.67/193,147.10 = 40,018.24/x
  3. Step 3: Cross multiply
    128,764.67x = 193,147.10 × 40,018.24
  4. Step 4: Simplify right side
    128,764.67x = 7,729,407,003.10
  5. Step 5: Solve for x
    x = 7,729,407,003.10/128,764.67
  6. Step 6: Final answer
    x = 60,027.39

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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.