Home / 143,962.77-198,684.05-80,322.69

Finding the Fourth Proportional to 143,962.77, 198,684.05 and 80,322.69

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Solution

The fourth proportional to 143,962.77, 198,684.05 and 80,322.69 is: 110,853.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,962.77 : 198,684.05 = 80,322.69 : x
  2. Step 2: Convert to fraction form
    143,962.77/198,684.05 = 80,322.69/x
  3. Step 3: Cross multiply
    143,962.77x = 198,684.05 × 80,322.69
  4. Step 4: Simplify right side
    143,962.77x = 15,958,836,954.48
  5. Step 5: Solve for x
    x = 15,958,836,954.48/143,962.77
  6. Step 6: Final answer
    x = 110,853.92

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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.