Home / 149,723.10-206,667.45-89,313.30

Finding the Fourth Proportional to 149,723.10, 206,667.45 and 89,313.30

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Solution

The fourth proportional to 149,723.10, 206,667.45 and 89,313.30 is: 123,281.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,723.10 : 206,667.45 = 89,313.30 : x
  2. Step 2: Convert to fraction form
    149,723.10/206,667.45 = 89,313.30/x
  3. Step 3: Cross multiply
    149,723.10x = 206,667.45 × 89,313.30
  4. Step 4: Simplify right side
    149,723.10x = 18,458,151,962.09
  5. Step 5: Solve for x
    x = 18,458,151,962.09/149,723.10
  6. Step 6: Final answer
    x = 123,281.92

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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.