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Finding the Fourth Proportional to 192,671.82, 289,090.76 and 80,374.14

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Solution

The fourth proportional to 192,671.82, 289,090.76 and 80,374.14 is: 120,595.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,671.82 : 289,090.76 = 80,374.14 : x
  2. Step 2: Convert to fraction form
    192,671.82/289,090.76 = 80,374.14/x
  3. Step 3: Cross multiply
    192,671.82x = 289,090.76 × 80,374.14
  4. Step 4: Simplify right side
    192,671.82x = 23,235,421,216.95
  5. Step 5: Solve for x
    x = 23,235,421,216.95/192,671.82
  6. Step 6: Final answer
    x = 120,595.85

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1.5x scale

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.