Home / 143,672.08-198,267.40-83,277.72

Finding the Fourth Proportional to 143,672.08, 198,267.40 and 83,277.72

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Solution

The fourth proportional to 143,672.08, 198,267.40 and 83,277.72 is: 114,923.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,672.08 : 198,267.40 = 83,277.72 : x
  2. Step 2: Convert to fraction form
    143,672.08/198,267.40 = 83,277.72/x
  3. Step 3: Cross multiply
    143,672.08x = 198,267.40 × 83,277.72
  4. Step 4: Simplify right side
    143,672.08x = 16,511,256,657.99
  5. Step 5: Solve for x
    x = 16,511,256,657.99/143,672.08
  6. Step 6: Final answer
    x = 114,923.21

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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.