Home / 215,958.47-323,798.94-89,685.81

Finding the Fourth Proportional to 215,958.47, 323,798.94 and 89,685.81

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Solution

The fourth proportional to 215,958.47, 323,798.94 and 89,685.81 is: 134,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,958.47 : 323,798.94 = 89,685.81 : x
  2. Step 2: Convert to fraction form
    215,958.47/323,798.94 = 89,685.81/x
  3. Step 3: Cross multiply
    215,958.47x = 323,798.94 × 89,685.81
  4. Step 4: Simplify right side
    215,958.47x = 29,040,170,211.04
  5. Step 5: Solve for x
    x = 29,040,170,211.04/215,958.47
  6. Step 6: Final answer
    x = 134,471.09

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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.