Home / 143,887.40-198,566.82-80,223.08

Finding the Fourth Proportional to 143,887.40, 198,566.82 and 80,223.08

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Solution

The fourth proportional to 143,887.40, 198,566.82 and 80,223.08 is: 110,709.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,887.40 : 198,566.82 = 80,223.08 : x
  2. Step 2: Convert to fraction form
    143,887.40/198,566.82 = 80,223.08/x
  3. Step 3: Cross multiply
    143,887.40x = 198,566.82 × 80,223.08
  4. Step 4: Simplify right side
    143,887.40x = 15,929,641,886.21
  5. Step 5: Solve for x
    x = 15,929,641,886.21/143,887.40
  6. Step 6: Final answer
    x = 110,709.08

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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.