Home / 143,863.25-198,449.87-90,054.81

Finding the Fourth Proportional to 143,863.25, 198,449.87 and 90,054.81

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Solution

The fourth proportional to 143,863.25, 198,449.87 and 90,054.81 is: 124,224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,863.25 : 198,449.87 = 90,054.81 : x
  2. Step 2: Convert to fraction form
    143,863.25/198,449.87 = 90,054.81/x
  3. Step 3: Cross multiply
    143,863.25x = 198,449.87 × 90,054.81
  4. Step 4: Simplify right side
    143,863.25x = 17,871,364,887.10
  5. Step 5: Solve for x
    x = 17,871,364,887.10/143,863.25
  6. Step 6: Final answer
    x = 124,224.68

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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.