Home / 142,906.92-197,219.43-79,243.35

Finding the Fourth Proportional to 142,906.92, 197,219.43 and 79,243.35

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Solution

The fourth proportional to 142,906.92, 197,219.43 and 79,243.35 is: 109,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,906.92 : 197,219.43 = 79,243.35 : x
  2. Step 2: Convert to fraction form
    142,906.92/197,219.43 = 79,243.35/x
  3. Step 3: Cross multiply
    142,906.92x = 197,219.43 × 79,243.35
  4. Step 4: Simplify right side
    142,906.92x = 15,628,328,613.23
  5. Step 5: Solve for x
    x = 15,628,328,613.23/142,906.92
  6. Step 6: Final answer
    x = 109,360.19

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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.