Home / 143,600.23-198,171.80-79,942.33

Finding the Fourth Proportional to 143,600.23, 198,171.80 and 79,942.33

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Solution

The fourth proportional to 143,600.23, 198,171.80 and 79,942.33 is: 110,322.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,600.23 : 198,171.80 = 79,942.33 : x
  2. Step 2: Convert to fraction form
    143,600.23/198,171.80 = 79,942.33/x
  3. Step 3: Cross multiply
    143,600.23x = 198,171.80 × 79,942.33
  4. Step 4: Simplify right side
    143,600.23x = 15,842,315,432.29
  5. Step 5: Solve for x
    x = 15,842,315,432.29/143,600.23
  6. Step 6: Final answer
    x = 110,322.35

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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.