Home / 178,831.94-268,188.57-72,188.28

Finding the Fourth Proportional to 178,831.94, 268,188.57 and 72,188.28

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Solution

The fourth proportional to 178,831.94, 268,188.57 and 72,188.28 is: 108,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,831.94 : 268,188.57 = 72,188.28 : x
  2. Step 2: Convert to fraction form
    178,831.94/268,188.57 = 72,188.28/x
  3. Step 3: Cross multiply
    178,831.94x = 268,188.57 × 72,188.28
  4. Step 4: Simplify right side
    178,831.94x = 19,360,071,583.96
  5. Step 5: Solve for x
    x = 19,360,071,583.96/178,831.94
  6. Step 6: Final answer
    x = 108,258.47

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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.