Home / 106,143.36-159,240.96-43,831.68

Finding the Fourth Proportional to 106,143.36, 159,240.96 and 43,831.68

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Solution

The fourth proportional to 106,143.36, 159,240.96 and 43,831.68 is: 65,758.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,143.36 : 159,240.96 = 43,831.68 : x
  2. Step 2: Convert to fraction form
    106,143.36/159,240.96 = 43,831.68/x
  3. Step 3: Cross multiply
    106,143.36x = 159,240.96 × 43,831.68
  4. Step 4: Simplify right side
    106,143.36x = 6,979,798,801.61
  5. Step 5: Solve for x
    x = 6,979,798,801.61/106,143.36
  6. Step 6: Final answer
    x = 65,758.22

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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.