Home / 192,781.90-266,135.54-121,201.39

Finding the Fourth Proportional to 192,781.90, 266,135.54 and 121,201.39

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Solution

The fourth proportional to 192,781.90, 266,135.54 and 121,201.39 is: 167,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,781.90 : 266,135.54 = 121,201.39 : x
  2. Step 2: Convert to fraction form
    192,781.90/266,135.54 = 121,201.39/x
  3. Step 3: Cross multiply
    192,781.90x = 266,135.54 × 121,201.39
  4. Step 4: Simplify right side
    192,781.90x = 32,255,997,376.40
  5. Step 5: Solve for x
    x = 32,255,997,376.40/192,781.90
  6. Step 6: Final answer
    x = 167,318.60

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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.