Home / 267,742.11-401,650.74-78,216.39

Finding the Fourth Proportional to 267,742.11, 401,650.74 and 78,216.39

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Solution

The fourth proportional to 267,742.11, 401,650.74 and 78,216.39 is: 117,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,742.11 : 401,650.74 = 78,216.39 : x
  2. Step 2: Convert to fraction form
    267,742.11/401,650.74 = 78,216.39/x
  3. Step 3: Cross multiply
    267,742.11x = 401,650.74 × 78,216.39
  4. Step 4: Simplify right side
    267,742.11x = 31,415,670,923.63
  5. Step 5: Solve for x
    x = 31,415,670,923.63/267,742.11
  6. Step 6: Final answer
    x = 117,335.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.