Home / 200,157.20-300,163-67,005.82

Finding the Fourth Proportional to 200,157.20, 300,163 and 67,005.82

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Solution

The fourth proportional to 200,157.20, 300,163 and 67,005.82 is: 100,484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,157.20 : 300,163 = 67,005.82 : x
  2. Step 2: Convert to fraction form
    200,157.20/300,163 = 67,005.82/x
  3. Step 3: Cross multiply
    200,157.20x = 300,163 × 67,005.82
  4. Step 4: Simplify right side
    200,157.20x = 20,112,667,948.66
  5. Step 5: Solve for x
    x = 20,112,667,948.66/200,157.20
  6. Step 6: Final answer
    x = 100,484.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.