Home / 192,809.04-266,044.78-121,138.31

Finding the Fourth Proportional to 192,809.04, 266,044.78 and 121,138.31

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Solution

The fourth proportional to 192,809.04, 266,044.78 and 121,138.31 is: 167,150.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,809.04 : 266,044.78 = 121,138.31 : x
  2. Step 2: Convert to fraction form
    192,809.04/266,044.78 = 121,138.31/x
  3. Step 3: Cross multiply
    192,809.04x = 266,044.78 × 121,138.31
  4. Step 4: Simplify right side
    192,809.04x = 32,228,215,850.06
  5. Step 5: Solve for x
    x = 32,228,215,850.06/192,809.04
  6. Step 6: Final answer
    x = 167,150.96

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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.