Home / 143,194.80-197,609.04-79,530.96

Finding the Fourth Proportional to 143,194.80, 197,609.04 and 79,530.96

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Solution

The fourth proportional to 143,194.80, 197,609.04 and 79,530.96 is: 109,752.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,194.80 : 197,609.04 = 79,530.96 : x
  2. Step 2: Convert to fraction form
    143,194.80/197,609.04 = 79,530.96/x
  3. Step 3: Cross multiply
    143,194.80x = 197,609.04 × 79,530.96
  4. Step 4: Simplify right side
    143,194.80x = 15,716,036,655.88
  5. Step 5: Solve for x
    x = 15,716,036,655.88/143,194.80
  6. Step 6: Final answer
    x = 109,752.84

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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.