Home / 143,885.55-198,562.07-80,223.36

Finding the Fourth Proportional to 143,885.55, 198,562.07 and 80,223.36

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Solution

The fourth proportional to 143,885.55, 198,562.07 and 80,223.36 is: 110,708.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,885.55 : 198,562.07 = 80,223.36 : x
  2. Step 2: Convert to fraction form
    143,885.55/198,562.07 = 80,223.36/x
  3. Step 3: Cross multiply
    143,885.55x = 198,562.07 × 80,223.36
  4. Step 4: Simplify right side
    143,885.55x = 15,929,316,022.84
  5. Step 5: Solve for x
    x = 15,929,316,022.84/143,885.55
  6. Step 6: Final answer
    x = 110,708.24

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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.