Home / 171,623.92-236,831.28-100,015.60

Finding the Fourth Proportional to 171,623.92, 236,831.28 and 100,015.60

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Solution

The fourth proportional to 171,623.92, 236,831.28 and 100,015.60 is: 138,015.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,623.92 : 236,831.28 = 100,015.60 : x
  2. Step 2: Convert to fraction form
    171,623.92/236,831.28 = 100,015.60/x
  3. Step 3: Cross multiply
    171,623.92x = 236,831.28 × 100,015.60
  4. Step 4: Simplify right side
    171,623.92x = 23,686,822,567.97
  5. Step 5: Solve for x
    x = 23,686,822,567.97/171,623.92
  6. Step 6: Final answer
    x = 138,015.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.