Home / 149,914.20-206,856.54-89,509.08

Finding the Fourth Proportional to 149,914.20, 206,856.54 and 89,509.08

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Solution

The fourth proportional to 149,914.20, 206,856.54 and 89,509.08 is: 123,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,914.20 : 206,856.54 = 89,509.08 : x
  2. Step 2: Convert to fraction form
    149,914.20/206,856.54 = 89,509.08/x
  3. Step 3: Cross multiply
    149,914.20x = 206,856.54 × 89,509.08
  4. Step 4: Simplify right side
    149,914.20x = 18,515,538,587.38
  5. Step 5: Solve for x
    x = 18,515,538,587.38/149,914.20
  6. Step 6: Final answer
    x = 123,507.57

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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.