Home / 149,766.92-206,679.36-81,784.38

Finding the Fourth Proportional to 149,766.92, 206,679.36 and 81,784.38

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Solution

The fourth proportional to 149,766.92, 206,679.36 and 81,784.38 is: 112,863.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,766.92 : 206,679.36 = 81,784.38 : x
  2. Step 2: Convert to fraction form
    149,766.92/206,679.36 = 81,784.38/x
  3. Step 3: Cross multiply
    149,766.92x = 206,679.36 × 81,784.38
  4. Step 4: Simplify right side
    149,766.92x = 16,903,143,316.40
  5. Step 5: Solve for x
    x = 16,903,143,316.40/149,766.92
  6. Step 6: Final answer
    x = 112,863.00

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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.