Home / 149,349.49-206,101.67-81,366.25

Finding the Fourth Proportional to 149,349.49, 206,101.67 and 81,366.25

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Solution

The fourth proportional to 149,349.49, 206,101.67 and 81,366.25 is: 112,285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,349.49 : 206,101.67 = 81,366.25 : x
  2. Step 2: Convert to fraction form
    149,349.49/206,101.67 = 81,366.25/x
  3. Step 3: Cross multiply
    149,349.49x = 206,101.67 × 81,366.25
  4. Step 4: Simplify right side
    149,349.49x = 16,769,719,287.97
  5. Step 5: Solve for x
    x = 16,769,719,287.97/149,349.49
  6. Step 6: Final answer
    x = 112,285.08

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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.