Home / 149,942.80-206,886.96-89,533

Finding the Fourth Proportional to 149,942.80, 206,886.96 and 89,533

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Solution

The fourth proportional to 149,942.80, 206,886.96 and 89,533 is: 123,535.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,942.80 : 206,886.96 = 89,533 : x
  2. Step 2: Convert to fraction form
    149,942.80/206,886.96 = 89,533/x
  3. Step 3: Cross multiply
    149,942.80x = 206,886.96 × 89,533
  4. Step 4: Simplify right side
    149,942.80x = 18,523,210,189.68
  5. Step 5: Solve for x
    x = 18,523,210,189.68/149,942.80
  6. Step 6: Final answer
    x = 123,535.18

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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.