Home / 203,544.40-280,892.04-112,908.72

Finding the Fourth Proportional to 203,544.40, 280,892.04 and 112,908.72

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Solution

The fourth proportional to 203,544.40, 280,892.04 and 112,908.72 is: 155,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,544.40 : 280,892.04 = 112,908.72 : x
  2. Step 2: Convert to fraction form
    203,544.40/280,892.04 = 112,908.72/x
  3. Step 3: Cross multiply
    203,544.40x = 280,892.04 × 112,908.72
  4. Step 4: Simplify right side
    203,544.40x = 31,715,160,694.59
  5. Step 5: Solve for x
    x = 31,715,160,694.59/203,544.40
  6. Step 6: Final answer
    x = 155,814.46

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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.