Home / 143,864.25-198,451.24-90,055.81

Finding the Fourth Proportional to 143,864.25, 198,451.24 and 90,055.81

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Solution

The fourth proportional to 143,864.25, 198,451.24 and 90,055.81 is: 124,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,864.25 : 198,451.24 = 90,055.81 : x
  2. Step 2: Convert to fraction form
    143,864.25/198,451.24 = 90,055.81/x
  3. Step 3: Cross multiply
    143,864.25x = 198,451.24 × 90,055.81
  4. Step 4: Simplify right side
    143,864.25x = 17,871,687,163.70
  5. Step 5: Solve for x
    x = 17,871,687,163.70/143,864.25
  6. Step 6: Final answer
    x = 124,226.05

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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.