Home / 131,383.12-197,071.32-36,612.88

Finding the Fourth Proportional to 131,383.12, 197,071.32 and 36,612.88

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Solution

The fourth proportional to 131,383.12, 197,071.32 and 36,612.88 is: 54,918.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,383.12 : 197,071.32 = 36,612.88 : x
  2. Step 2: Convert to fraction form
    131,383.12/197,071.32 = 36,612.88/x
  3. Step 3: Cross multiply
    131,383.12x = 197,071.32 × 36,612.88
  4. Step 4: Simplify right side
    131,383.12x = 7,215,348,590.60
  5. Step 5: Solve for x
    x = 7,215,348,590.60/131,383.12
  6. Step 6: Final answer
    x = 54,918.38

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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.