Home / 142,648.92-213,975.81-53,944.20

Finding the Fourth Proportional to 142,648.92, 213,975.81 and 53,944.20

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Solution

The fourth proportional to 142,648.92, 213,975.81 and 53,944.20 is: 80,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,648.92 : 213,975.81 = 53,944.20 : x
  2. Step 2: Convert to fraction form
    142,648.92/213,975.81 = 53,944.20/x
  3. Step 3: Cross multiply
    142,648.92x = 213,975.81 × 53,944.20
  4. Step 4: Simplify right side
    142,648.92x = 11,542,753,889.80
  5. Step 5: Solve for x
    x = 11,542,753,889.80/142,648.92
  6. Step 6: Final answer
    x = 80,917.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.