Home / 143,828.34-198,483.39-80,164.86

Finding the Fourth Proportional to 143,828.34, 198,483.39 and 80,164.86

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Solution

The fourth proportional to 143,828.34, 198,483.39 and 80,164.86 is: 110,627.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,828.34 : 198,483.39 = 80,164.86 : x
  2. Step 2: Convert to fraction form
    143,828.34/198,483.39 = 80,164.86/x
  3. Step 3: Cross multiply
    143,828.34x = 198,483.39 × 80,164.86
  4. Step 4: Simplify right side
    143,828.34x = 15,911,393,171.68
  5. Step 5: Solve for x
    x = 15,911,393,171.68/143,828.34
  6. Step 6: Final answer
    x = 110,627.66

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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.