Home / 131,305.89-197,008.47-51,400.96

Finding the Fourth Proportional to 131,305.89, 197,008.47 and 51,400.96

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Solution

The fourth proportional to 131,305.89, 197,008.47 and 51,400.96 is: 77,120.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,305.89 : 197,008.47 = 51,400.96 : x
  2. Step 2: Convert to fraction form
    131,305.89/197,008.47 = 51,400.96/x
  3. Step 3: Cross multiply
    131,305.89x = 197,008.47 × 51,400.96
  4. Step 4: Simplify right side
    131,305.89x = 10,126,424,486.13
  5. Step 5: Solve for x
    x = 10,126,424,486.13/131,305.89
  6. Step 6: Final answer
    x = 77,120.87

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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.