Home / 143,194.50-197,608.48-79,532.82

Finding the Fourth Proportional to 143,194.50, 197,608.48 and 79,532.82

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Solution

The fourth proportional to 143,194.50, 197,608.48 and 79,532.82 is: 109,755.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,194.50 : 197,608.48 = 79,532.82 : x
  2. Step 2: Convert to fraction form
    143,194.50/197,608.48 = 79,532.82/x
  3. Step 3: Cross multiply
    143,194.50x = 197,608.48 × 79,532.82
  4. Step 4: Simplify right side
    143,194.50x = 15,716,359,471.48
  5. Step 5: Solve for x
    x = 15,716,359,471.48/143,194.50
  6. Step 6: Final answer
    x = 109,755.33

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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.