Home / 149,724.10-206,668.83-89,314.30

Finding the Fourth Proportional to 149,724.10, 206,668.83 and 89,314.30

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Solution

The fourth proportional to 149,724.10, 206,668.83 and 89,314.30 is: 123,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,724.10 : 206,668.83 = 89,314.30 : x
  2. Step 2: Convert to fraction form
    149,724.10/206,668.83 = 89,314.30/x
  3. Step 3: Cross multiply
    149,724.10x = 206,668.83 × 89,314.30
  4. Step 4: Simplify right side
    149,724.10x = 18,458,481,883.27
  5. Step 5: Solve for x
    x = 18,458,481,883.27/149,724.10
  6. Step 6: Final answer
    x = 123,283.30

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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.