Home / 143,164.05-197,575.53-79,501.85

Finding the Fourth Proportional to 143,164.05, 197,575.53 and 79,501.85

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Solution

The fourth proportional to 143,164.05, 197,575.53 and 79,501.85 is: 109,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,164.05 : 197,575.53 = 79,501.85 : x
  2. Step 2: Convert to fraction form
    143,164.05/197,575.53 = 79,501.85/x
  3. Step 3: Cross multiply
    143,164.05x = 197,575.53 × 79,501.85
  4. Step 4: Simplify right side
    143,164.05x = 15,707,619,161.85
  5. Step 5: Solve for x
    x = 15,707,619,161.85/143,164.05
  6. Step 6: Final answer
    x = 109,717.62

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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.