Home / 131,727.87-197,592.32-31,887.90

Finding the Fourth Proportional to 131,727.87, 197,592.32 and 31,887.90

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Solution

The fourth proportional to 131,727.87, 197,592.32 and 31,887.90 is: 47,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,727.87 : 197,592.32 = 31,887.90 : x
  2. Step 2: Convert to fraction form
    131,727.87/197,592.32 = 31,887.90/x
  3. Step 3: Cross multiply
    131,727.87x = 197,592.32 × 31,887.90
  4. Step 4: Simplify right side
    131,727.87x = 6,300,804,140.93
  5. Step 5: Solve for x
    x = 6,300,804,140.93/131,727.87
  6. Step 6: Final answer
    x = 47,831.97

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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.