Home / 120,497.21-166,281.62-66,783.14

Finding the Fourth Proportional to 120,497.21, 166,281.62 and 66,783.14

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Solution

The fourth proportional to 120,497.21, 166,281.62 and 66,783.14 is: 92,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,497.21 : 166,281.62 = 66,783.14 : x
  2. Step 2: Convert to fraction form
    120,497.21/166,281.62 = 66,783.14/x
  3. Step 3: Cross multiply
    120,497.21x = 166,281.62 × 66,783.14
  4. Step 4: Simplify right side
    120,497.21x = 11,104,807,542.56
  5. Step 5: Solve for x
    x = 11,104,807,542.56/120,497.21
  6. Step 6: Final answer
    x = 92,158.22

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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.