Home / 203,498.31-280,827.75-112,855.37

Finding the Fourth Proportional to 203,498.31, 280,827.75 and 112,855.37

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Solution

The fourth proportional to 203,498.31, 280,827.75 and 112,855.37 is: 155,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,498.31 : 280,827.75 = 112,855.37 : x
  2. Step 2: Convert to fraction form
    203,498.31/280,827.75 = 112,855.37/x
  3. Step 3: Cross multiply
    203,498.31x = 280,827.75 × 112,855.37
  4. Step 4: Simplify right side
    203,498.31x = 31,692,918,228.38
  5. Step 5: Solve for x
    x = 31,692,918,228.38/203,498.31
  6. Step 6: Final answer
    x = 155,740.45

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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.