Home / 143,185.38-197,595.89-79,523.70

Finding the Fourth Proportional to 143,185.38, 197,595.89 and 79,523.70

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Solution

The fourth proportional to 143,185.38, 197,595.89 and 79,523.70 is: 109,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,185.38 : 197,595.89 = 79,523.70 : x
  2. Step 2: Convert to fraction form
    143,185.38/197,595.89 = 79,523.70/x
  3. Step 3: Cross multiply
    143,185.38x = 197,595.89 × 79,523.70
  4. Step 4: Simplify right side
    143,185.38x = 15,713,556,277.59
  5. Step 5: Solve for x
    x = 15,713,556,277.59/143,185.38
  6. Step 6: Final answer
    x = 109,742.74

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1.5x scale

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.