Home / 201,647.42-278,332.20-131,806.86

Finding the Fourth Proportional to 201,647.42, 278,332.20 and 131,806.86

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Solution

The fourth proportional to 201,647.42, 278,332.20 and 131,806.86 is: 181,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,647.42 : 278,332.20 = 131,806.86 : x
  2. Step 2: Convert to fraction form
    201,647.42/278,332.20 = 131,806.86/x
  3. Step 3: Cross multiply
    201,647.42x = 278,332.20 × 131,806.86
  4. Step 4: Simplify right side
    201,647.42x = 36,686,093,318.89
  5. Step 5: Solve for x
    x = 36,686,093,318.89/201,647.42
  6. Step 6: Final answer
    x = 181,931.88

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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.