Home / 133,786.13-184,617.75-76,414.18

Finding the Fourth Proportional to 133,786.13, 184,617.75 and 76,414.18

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Solution

The fourth proportional to 133,786.13, 184,617.75 and 76,414.18 is: 105,447.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,786.13 : 184,617.75 = 76,414.18 : x
  2. Step 2: Convert to fraction form
    133,786.13/184,617.75 = 76,414.18/x
  3. Step 3: Cross multiply
    133,786.13x = 184,617.75 × 76,414.18
  4. Step 4: Simplify right side
    133,786.13x = 14,107,413,518.15
  5. Step 5: Solve for x
    x = 14,107,413,518.15/133,786.13
  6. Step 6: Final answer
    x = 105,447.51

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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.