Home / 149,809.36-206,709.96-89,357.44

Finding the Fourth Proportional to 149,809.36, 206,709.96 and 89,357.44

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Solution

The fourth proportional to 149,809.36, 206,709.96 and 89,357.44 is: 123,297.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,809.36 : 206,709.96 = 89,357.44 : x
  2. Step 2: Convert to fraction form
    149,809.36/206,709.96 = 89,357.44/x
  3. Step 3: Cross multiply
    149,809.36x = 206,709.96 × 89,357.44
  4. Step 4: Simplify right side
    149,809.36x = 18,471,072,848.10
  5. Step 5: Solve for x
    x = 18,471,072,848.10/149,809.36
  6. Step 6: Final answer
    x = 123,297.19

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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.