Home / 131,305.39-197,007.72-51,400.46

Finding the Fourth Proportional to 131,305.39, 197,007.72 and 51,400.46

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Solution

The fourth proportional to 131,305.39, 197,007.72 and 51,400.46 is: 77,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,305.39 : 197,007.72 = 51,400.46 : x
  2. Step 2: Convert to fraction form
    131,305.39/197,007.72 = 51,400.46/x
  3. Step 3: Cross multiply
    131,305.39x = 197,007.72 × 51,400.46
  4. Step 4: Simplify right side
    131,305.39x = 10,126,287,431.55
  5. Step 5: Solve for x
    x = 10,126,287,431.55/131,305.39
  6. Step 6: Final answer
    x = 77,120.12

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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.