Home / 136,905.81-189,896.61-133,264.47

Finding the Fourth Proportional to 136,905.81, 189,896.61 and 133,264.47

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Solution

The fourth proportional to 136,905.81, 189,896.61 and 133,264.47 is: 184,845.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,905.81 : 189,896.61 = 133,264.47 : x
  2. Step 2: Convert to fraction form
    136,905.81/189,896.61 = 133,264.47/x
  3. Step 3: Cross multiply
    136,905.81x = 189,896.61 × 133,264.47
  4. Step 4: Simplify right side
    136,905.81x = 25,306,471,086.45
  5. Step 5: Solve for x
    x = 25,306,471,086.45/136,905.81
  6. Step 6: Final answer
    x = 184,845.85

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.