Home / 143,659.13-198,249.59-83,264.81

Finding the Fourth Proportional to 143,659.13, 198,249.59 and 83,264.81

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Solution

The fourth proportional to 143,659.13, 198,249.59 and 83,264.81 is: 114,905.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,659.13 : 198,249.59 = 83,264.81 : x
  2. Step 2: Convert to fraction form
    143,659.13/198,249.59 = 83,264.81/x
  3. Step 3: Cross multiply
    143,659.13x = 198,249.59 × 83,264.81
  4. Step 4: Simplify right side
    143,659.13x = 16,507,214,443.93
  5. Step 5: Solve for x
    x = 16,507,214,443.93/143,659.13
  6. Step 6: Final answer
    x = 114,905.43

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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.