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Finding the Fourth Proportional to 134,383.42, 185,410.65 and 86,664.16

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Solution

The fourth proportional to 134,383.42, 185,410.65 and 86,664.16 is: 119,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,383.42 : 185,410.65 = 86,664.16 : x
  2. Step 2: Convert to fraction form
    134,383.42/185,410.65 = 86,664.16/x
  3. Step 3: Cross multiply
    134,383.42x = 185,410.65 × 86,664.16
  4. Step 4: Simplify right side
    134,383.42x = 16,068,458,237.30
  5. Step 5: Solve for x
    x = 16,068,458,237.30/134,383.42
  6. Step 6: Final answer
    x = 119,571.73

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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.