Home / 143,327.21-197,793.77-78,799.25

Finding the Fourth Proportional to 143,327.21, 197,793.77 and 78,799.25

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Solution

The fourth proportional to 143,327.21, 197,793.77 and 78,799.25 is: 108,744.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,327.21 : 197,793.77 = 78,799.25 : x
  2. Step 2: Convert to fraction form
    143,327.21/197,793.77 = 78,799.25/x
  3. Step 3: Cross multiply
    143,327.21x = 197,793.77 × 78,799.25
  4. Step 4: Simplify right side
    143,327.21x = 15,585,999,347.71
  5. Step 5: Solve for x
    x = 15,585,999,347.71/143,327.21
  6. Step 6: Final answer
    x = 108,744.17

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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.