Home / 146,189.70-201,739.61-81,659.84

Finding the Fourth Proportional to 146,189.70, 201,739.61 and 81,659.84

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Solution

The fourth proportional to 146,189.70, 201,739.61 and 81,659.84 is: 112,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,189.70 : 201,739.61 = 81,659.84 : x
  2. Step 2: Convert to fraction form
    146,189.70/201,739.61 = 81,659.84/x
  3. Step 3: Cross multiply
    146,189.70x = 201,739.61 × 81,659.84
  4. Step 4: Simplify right side
    146,189.70x = 16,474,022,857.27
  5. Step 5: Solve for x
    x = 16,474,022,857.27/146,189.70
  6. Step 6: Final answer
    x = 112,689.35

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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.