Home / 131,183.51-196,781.41-42,443.96

Finding the Fourth Proportional to 131,183.51, 196,781.41 and 42,443.96

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Solution

The fourth proportional to 131,183.51, 196,781.41 and 42,443.96 is: 63,667.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,183.51 : 196,781.41 = 42,443.96 : x
  2. Step 2: Convert to fraction form
    131,183.51/196,781.41 = 42,443.96/x
  3. Step 3: Cross multiply
    131,183.51x = 196,781.41 × 42,443.96
  4. Step 4: Simplify right side
    131,183.51x = 8,352,182,294.78
  5. Step 5: Solve for x
    x = 8,352,182,294.78/131,183.51
  6. Step 6: Final answer
    x = 63,667.93

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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.