Home / 131,512.56-197,139.62-51,491.84

Finding the Fourth Proportional to 131,512.56, 197,139.62 and 51,491.84

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Solution

The fourth proportional to 131,512.56, 197,139.62 and 51,491.84 is: 77,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,512.56 : 197,139.62 = 51,491.84 : x
  2. Step 2: Convert to fraction form
    131,512.56/197,139.62 = 51,491.84/x
  3. Step 3: Cross multiply
    131,512.56x = 197,139.62 × 51,491.84
  4. Step 4: Simplify right side
    131,512.56x = 10,151,081,770.70
  5. Step 5: Solve for x
    x = 10,151,081,770.70/131,512.56
  6. Step 6: Final answer
    x = 77,187.17

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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.