Home / 143,358.13-197,846.19-79,701.85

Finding the Fourth Proportional to 143,358.13, 197,846.19 and 79,701.85

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Solution

The fourth proportional to 143,358.13, 197,846.19 and 79,701.85 is: 109,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,358.13 : 197,846.19 = 79,701.85 : x
  2. Step 2: Convert to fraction form
    143,358.13/197,846.19 = 79,701.85/x
  3. Step 3: Cross multiply
    143,358.13x = 197,846.19 × 79,701.85
  4. Step 4: Simplify right side
    143,358.13x = 15,768,707,358.45
  5. Step 5: Solve for x
    x = 15,768,707,358.45/143,358.13
  6. Step 6: Final answer
    x = 109,995.21

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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.