Home / 135,186.44-202,836.86-72,784.04

Finding the Fourth Proportional to 135,186.44, 202,836.86 and 72,784.04

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Solution

The fourth proportional to 135,186.44, 202,836.86 and 72,784.04 is: 109,206.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,186.44 : 202,836.86 = 72,784.04 : x
  2. Step 2: Convert to fraction form
    135,186.44/202,836.86 = 72,784.04/x
  3. Step 3: Cross multiply
    135,186.44x = 202,836.86 × 72,784.04
  4. Step 4: Simplify right side
    135,186.44x = 14,763,286,131.71
  5. Step 5: Solve for x
    x = 14,763,286,131.71/135,186.44
  6. Step 6: Final answer
    x = 109,206.86

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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.