Home / 143,035.56-197,390.52-79,373.88

Finding the Fourth Proportional to 143,035.56, 197,390.52 and 79,373.88

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Solution

The fourth proportional to 143,035.56, 197,390.52 and 79,373.88 is: 109,536.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,035.56 : 197,390.52 = 79,373.88 : x
  2. Step 2: Convert to fraction form
    143,035.56/197,390.52 = 79,373.88/x
  3. Step 3: Cross multiply
    143,035.56x = 197,390.52 × 79,373.88
  4. Step 4: Simplify right side
    143,035.56x = 15,667,651,447.62
  5. Step 5: Solve for x
    x = 15,667,651,447.62/143,035.56
  6. Step 6: Final answer
    x = 109,536.76

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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.