Home / 142,724.45-196,945.38-79,050.35

Finding the Fourth Proportional to 142,724.45, 196,945.38 and 79,050.35

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Solution

The fourth proportional to 142,724.45, 196,945.38 and 79,050.35 is: 109,081.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,724.45 : 196,945.38 = 79,050.35 : x
  2. Step 2: Convert to fraction form
    142,724.45/196,945.38 = 79,050.35/x
  3. Step 3: Cross multiply
    142,724.45x = 196,945.38 × 79,050.35
  4. Step 4: Simplify right side
    142,724.45x = 15,568,601,712.25
  5. Step 5: Solve for x
    x = 15,568,601,712.25/142,724.45
  6. Step 6: Final answer
    x = 109,081.53

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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.