Home / 131,555.96-197,383.32-79,003.16

Finding the Fourth Proportional to 131,555.96, 197,383.32 and 79,003.16

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Solution

The fourth proportional to 131,555.96, 197,383.32 and 79,003.16 is: 118,534.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,555.96 : 197,383.32 = 79,003.16 : x
  2. Step 2: Convert to fraction form
    131,555.96/197,383.32 = 79,003.16/x
  3. Step 3: Cross multiply
    131,555.96x = 197,383.32 × 79,003.16
  4. Step 4: Simplify right side
    131,555.96x = 15,593,906,011.29
  5. Step 5: Solve for x
    x = 15,593,906,011.29/131,555.96
  6. Step 6: Final answer
    x = 118,534.39

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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.