Home / 149,828.38-206,762.68-81,845.48

Finding the Fourth Proportional to 149,828.38, 206,762.68 and 81,845.48

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Solution

The fourth proportional to 149,828.38, 206,762.68 and 81,845.48 is: 112,946.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,828.38 : 206,762.68 = 81,845.48 : x
  2. Step 2: Convert to fraction form
    149,828.38/206,762.68 = 81,845.48/x
  3. Step 3: Cross multiply
    149,828.38x = 206,762.68 × 81,845.48
  4. Step 4: Simplify right side
    149,828.38x = 16,922,590,790.69
  5. Step 5: Solve for x
    x = 16,922,590,790.69/149,828.38
  6. Step 6: Final answer
    x = 112,946.50

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1.5x scale

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.