Home / 203,304.14-280,561.36-112,661.61

Finding the Fourth Proportional to 203,304.14, 280,561.36 and 112,661.61

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Solution

The fourth proportional to 203,304.14, 280,561.36 and 112,661.61 is: 155,473.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,304.14 : 280,561.36 = 112,661.61 : x
  2. Step 2: Convert to fraction form
    203,304.14/280,561.36 = 112,661.61/x
  3. Step 3: Cross multiply
    203,304.14x = 280,561.36 × 112,661.61
  4. Step 4: Simplify right side
    203,304.14x = 31,608,494,521.39
  5. Step 5: Solve for x
    x = 31,608,494,521.39/203,304.14
  6. Step 6: Final answer
    x = 155,473.93

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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.