Home / 143,848.80-198,513.96-80,179.74

Finding the Fourth Proportional to 143,848.80, 198,513.96 and 80,179.74

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Solution

The fourth proportional to 143,848.80, 198,513.96 and 80,179.74 is: 110,649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,848.80 : 198,513.96 = 80,179.74 : x
  2. Step 2: Convert to fraction form
    143,848.80/198,513.96 = 80,179.74/x
  3. Step 3: Cross multiply
    143,848.80x = 198,513.96 × 80,179.74
  4. Step 4: Simplify right side
    143,848.80x = 15,916,797,699.17
  5. Step 5: Solve for x
    x = 15,916,797,699.17/143,848.80
  6. Step 6: Final answer
    x = 110,649.50

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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.