Home / 142,906.80-197,219.26-79,243.23

Finding the Fourth Proportional to 142,906.80, 197,219.26 and 79,243.23

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Solution

The fourth proportional to 142,906.80, 197,219.26 and 79,243.23 is: 109,360.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,906.80 : 197,219.26 = 79,243.23 : x
  2. Step 2: Convert to fraction form
    142,906.80/197,219.26 = 79,243.23/x
  3. Step 3: Cross multiply
    142,906.80x = 197,219.26 × 79,243.23
  4. Step 4: Simplify right side
    142,906.80x = 15,628,290,784.39
  5. Step 5: Solve for x
    x = 15,628,290,784.39/142,906.80
  6. Step 6: Final answer
    x = 109,360.02

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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.