Home / 120,601.36-166,409.94-66,877.84

Finding the Fourth Proportional to 120,601.36, 166,409.94 and 66,877.84

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Solution

The fourth proportional to 120,601.36, 166,409.94 and 66,877.84 is: 92,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,601.36 : 166,409.94 = 66,877.84 : x
  2. Step 2: Convert to fraction form
    120,601.36/166,409.94 = 66,877.84/x
  3. Step 3: Cross multiply
    120,601.36x = 166,409.94 × 66,877.84
  4. Step 4: Simplify right side
    120,601.36x = 11,129,137,341.73
  5. Step 5: Solve for x
    x = 11,129,137,341.73/120,601.36
  6. Step 6: Final answer
    x = 92,280.36

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1.5x scale

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.