Home / 143,831.70-215,712.94-43,992.76

Finding the Fourth Proportional to 143,831.70, 215,712.94 and 43,992.76

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Solution

The fourth proportional to 143,831.70, 215,712.94 and 43,992.76 is: 65,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,831.70 : 215,712.94 = 43,992.76 : x
  2. Step 2: Convert to fraction form
    143,831.70/215,712.94 = 43,992.76/x
  3. Step 3: Cross multiply
    143,831.70x = 215,712.94 × 43,992.76
  4. Step 4: Simplify right side
    143,831.70x = 9,489,807,378.35
  5. Step 5: Solve for x
    x = 9,489,807,378.35/143,831.70
  6. Step 6: Final answer
    x = 65,978.55

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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.