Home / 143,747.64-198,371.81-80,089.59

Finding the Fourth Proportional to 143,747.64, 198,371.81 and 80,089.59

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Solution

The fourth proportional to 143,747.64, 198,371.81 and 80,089.59 is: 110,523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,747.64 : 198,371.81 = 80,089.59 : x
  2. Step 2: Convert to fraction form
    143,747.64/198,371.81 = 80,089.59/x
  3. Step 3: Cross multiply
    143,747.64x = 198,371.81 × 80,089.59
  4. Step 4: Simplify right side
    143,747.64x = 15,887,516,530.01
  5. Step 5: Solve for x
    x = 15,887,516,530.01/143,747.64
  6. Step 6: Final answer
    x = 110,523.67

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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.