Home / 143,366.13-197,857.23-79,709.85

Finding the Fourth Proportional to 143,366.13, 197,857.23 and 79,709.85

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Solution

The fourth proportional to 143,366.13, 197,857.23 and 79,709.85 is: 110,006.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,366.13 : 197,857.23 = 79,709.85 : x
  2. Step 2: Convert to fraction form
    143,366.13/197,857.23 = 79,709.85/x
  3. Step 3: Cross multiply
    143,366.13x = 197,857.23 × 79,709.85
  4. Step 4: Simplify right side
    143,366.13x = 15,771,170,124.72
  5. Step 5: Solve for x
    x = 15,771,170,124.72/143,366.13
  6. Step 6: Final answer
    x = 110,006.25

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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.