Home / 149,950.92-206,917.98-81,963.60

Finding the Fourth Proportional to 149,950.92, 206,917.98 and 81,963.60

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Solution

The fourth proportional to 149,950.92, 206,917.98 and 81,963.60 is: 113,101.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,950.92 : 206,917.98 = 81,963.60 : x
  2. Step 2: Convert to fraction form
    149,950.92/206,917.98 = 81,963.60/x
  3. Step 3: Cross multiply
    149,950.92x = 206,917.98 × 81,963.60
  4. Step 4: Simplify right side
    149,950.92x = 16,959,742,545.53
  5. Step 5: Solve for x
    x = 16,959,742,545.53/149,950.92
  6. Step 6: Final answer
    x = 113,101.96

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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.