Home / 143,831.50-215,712.61-43,992.54

Finding the Fourth Proportional to 143,831.50, 215,712.61 and 43,992.54

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Solution

The fourth proportional to 143,831.50, 215,712.61 and 43,992.54 is: 65,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,831.50 : 215,712.61 = 43,992.54 : x
  2. Step 2: Convert to fraction form
    143,831.50/215,712.61 = 43,992.54/x
  3. Step 3: Cross multiply
    143,831.50x = 215,712.61 × 43,992.54
  4. Step 4: Simplify right side
    143,831.50x = 9,489,745,513.95
  5. Step 5: Solve for x
    x = 9,489,745,513.95/143,831.50
  6. Step 6: Final answer
    x = 65,978.22

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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.