Home / 135,146.16-186,502.43-73,892.54

Finding the Fourth Proportional to 135,146.16, 186,502.43 and 73,892.54

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Solution

The fourth proportional to 135,146.16, 186,502.43 and 73,892.54 is: 101,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,146.16 : 186,502.43 = 73,892.54 : x
  2. Step 2: Convert to fraction form
    135,146.16/186,502.43 = 73,892.54/x
  3. Step 3: Cross multiply
    135,146.16x = 186,502.43 × 73,892.54
  4. Step 4: Simplify right side
    135,146.16x = 13,781,138,919.86
  5. Step 5: Solve for x
    x = 13,781,138,919.86/135,146.16
  6. Step 6: Final answer
    x = 101,972.11

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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.