Home / 135,923.42-204,009.68-72,814.80

Finding the Fourth Proportional to 135,923.42, 204,009.68 and 72,814.80

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Solution

The fourth proportional to 135,923.42, 204,009.68 and 72,814.80 is: 109,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,923.42 : 204,009.68 = 72,814.80 : x
  2. Step 2: Convert to fraction form
    135,923.42/204,009.68 = 72,814.80/x
  3. Step 3: Cross multiply
    135,923.42x = 204,009.68 × 72,814.80
  4. Step 4: Simplify right side
    135,923.42x = 14,854,923,795.58
  5. Step 5: Solve for x
    x = 14,854,923,795.58/135,923.42
  6. Step 6: Final answer
    x = 109,288.92

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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.