Home / 143,961.18-198,666.32-80,298.96

Finding the Fourth Proportional to 143,961.18, 198,666.32 and 80,298.96

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Solution

The fourth proportional to 143,961.18, 198,666.32 and 80,298.96 is: 110,812.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,961.18 : 198,666.32 = 80,298.96 : x
  2. Step 2: Convert to fraction form
    143,961.18/198,666.32 = 80,298.96/x
  3. Step 3: Cross multiply
    143,961.18x = 198,666.32 × 80,298.96
  4. Step 4: Simplify right side
    143,961.18x = 15,952,698,883.03
  5. Step 5: Solve for x
    x = 15,952,698,883.03/143,961.18
  6. Step 6: Final answer
    x = 110,812.50

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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.