Home / 105,190.12-157,831.42-55,258.62

Finding the Fourth Proportional to 105,190.12, 157,831.42 and 55,258.62

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Solution

The fourth proportional to 105,190.12, 157,831.42 and 55,258.62 is: 82,912.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,190.12 : 157,831.42 = 55,258.62 : x
  2. Step 2: Convert to fraction form
    105,190.12/157,831.42 = 55,258.62/x
  3. Step 3: Cross multiply
    105,190.12x = 157,831.42 × 55,258.62
  4. Step 4: Simplify right side
    105,190.12x = 8,721,546,461.84
  5. Step 5: Solve for x
    x = 8,721,546,461.84/105,190.12
  6. Step 6: Final answer
    x = 82,912.22

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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.