Home / 203,563.30-280,919.04-112,925.22

Finding the Fourth Proportional to 203,563.30, 280,919.04 and 112,925.22

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Solution

The fourth proportional to 203,563.30, 280,919.04 and 112,925.22 is: 155,837.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,563.30 : 280,919.04 = 112,925.22 : x
  2. Step 2: Convert to fraction form
    203,563.30/280,919.04 = 112,925.22/x
  3. Step 3: Cross multiply
    203,563.30x = 280,919.04 × 112,925.22
  4. Step 4: Simplify right side
    203,563.30x = 31,722,844,394.19
  5. Step 5: Solve for x
    x = 31,722,844,394.19/203,563.30
  6. Step 6: Final answer
    x = 155,837.74

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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.