Home / 203,567.22-280,924.31-111,685.89

Finding the Fourth Proportional to 203,567.22, 280,924.31 and 111,685.89

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Solution

The fourth proportional to 203,567.22, 280,924.31 and 111,685.89 is: 154,127.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,567.22 : 280,924.31 = 111,685.89 : x
  2. Step 2: Convert to fraction form
    203,567.22/280,924.31 = 111,685.89/x
  3. Step 3: Cross multiply
    203,567.22x = 280,924.31 × 111,685.89
  4. Step 4: Simplify right side
    203,567.22x = 31,375,280,459.58
  5. Step 5: Solve for x
    x = 31,375,280,459.58/203,567.22
  6. Step 6: Final answer
    x = 154,127.37

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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.