Home / 120,913.74-166,858.86-67,197.36

Finding the Fourth Proportional to 120,913.74, 166,858.86 and 67,197.36

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Solution

The fourth proportional to 120,913.74, 166,858.86 and 67,197.36 is: 92,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,913.74 : 166,858.86 = 67,197.36 : x
  2. Step 2: Convert to fraction form
    120,913.74/166,858.86 = 67,197.36/x
  3. Step 3: Cross multiply
    120,913.74x = 166,858.86 × 67,197.36
  4. Step 4: Simplify right side
    120,913.74x = 11,212,474,884.61
  5. Step 5: Solve for x
    x = 11,212,474,884.61/120,913.74
  6. Step 6: Final answer
    x = 92,731.19

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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.