Home / 149,242.19-205,947.33-81,258.96

Finding the Fourth Proportional to 149,242.19, 205,947.33 and 81,258.96

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Solution

The fourth proportional to 149,242.19, 205,947.33 and 81,258.96 is: 112,133.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,242.19 : 205,947.33 = 81,258.96 : x
  2. Step 2: Convert to fraction form
    149,242.19/205,947.33 = 81,258.96/x
  3. Step 3: Cross multiply
    149,242.19x = 205,947.33 × 81,258.96
  4. Step 4: Simplify right side
    149,242.19x = 16,735,065,850.58
  5. Step 5: Solve for x
    x = 16,735,065,850.58/149,242.19
  6. Step 6: Final answer
    x = 112,133.61

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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.