Home / 203,115.24-280,291.32-112,464

Finding the Fourth Proportional to 203,115.24, 280,291.32 and 112,464

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Solution

The fourth proportional to 203,115.24, 280,291.32 and 112,464 is: 155,196.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,115.24 : 280,291.32 = 112,464 : x
  2. Step 2: Convert to fraction form
    203,115.24/280,291.32 = 112,464/x
  3. Step 3: Cross multiply
    203,115.24x = 280,291.32 × 112,464
  4. Step 4: Simplify right side
    203,115.24x = 31,522,683,012.48
  5. Step 5: Solve for x
    x = 31,522,683,012.48/203,115.24
  6. Step 6: Final answer
    x = 155,196.05

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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.