Home / 143,167.05-197,579.67-79,504.85

Finding the Fourth Proportional to 143,167.05, 197,579.67 and 79,504.85

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Solution

The fourth proportional to 143,167.05, 197,579.67 and 79,504.85 is: 109,721.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,167.05 : 197,579.67 = 79,504.85 : x
  2. Step 2: Convert to fraction form
    143,167.05/197,579.67 = 79,504.85/x
  3. Step 3: Cross multiply
    143,167.05x = 197,579.67 × 79,504.85
  4. Step 4: Simplify right side
    143,167.05x = 15,708,541,038.50
  5. Step 5: Solve for x
    x = 15,708,541,038.50/143,167.05
  6. Step 6: Final answer
    x = 109,721.76

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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.