Home / 131,318.56-197,039.38-64,722.36

Finding the Fourth Proportional to 131,318.56, 197,039.38 and 64,722.36

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Solution

The fourth proportional to 131,318.56, 197,039.38 and 64,722.36 is: 97,113.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,318.56 : 197,039.38 = 64,722.36 : x
  2. Step 2: Convert to fraction form
    131,318.56/197,039.38 = 64,722.36/x
  3. Step 3: Cross multiply
    131,318.56x = 197,039.38 × 64,722.36
  4. Step 4: Simplify right side
    131,318.56x = 12,752,853,686.54
  5. Step 5: Solve for x
    x = 12,752,853,686.54/131,318.56
  6. Step 6: Final answer
    x = 97,113.87

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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.