Home / 160,738.46-221,831.61-89,132.43

Finding the Fourth Proportional to 160,738.46, 221,831.61 and 89,132.43

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Solution

The fourth proportional to 160,738.46, 221,831.61 and 89,132.43 is: 123,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,738.46 : 221,831.61 = 89,132.43 : x
  2. Step 2: Convert to fraction form
    160,738.46/221,831.61 = 89,132.43/x
  3. Step 3: Cross multiply
    160,738.46x = 221,831.61 × 89,132.43
  4. Step 4: Simplify right side
    160,738.46x = 19,772,391,449.10
  5. Step 5: Solve for x
    x = 19,772,391,449.10/160,738.46
  6. Step 6: Final answer
    x = 123,009.71

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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.