Home / 149,485.73-206,291.24-81,503.84

Finding the Fourth Proportional to 149,485.73, 206,291.24 and 81,503.84

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Solution

The fourth proportional to 149,485.73, 206,291.24 and 81,503.84 is: 112,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,485.73 : 206,291.24 = 81,503.84 : x
  2. Step 2: Convert to fraction form
    149,485.73/206,291.24 = 81,503.84/x
  3. Step 3: Cross multiply
    149,485.73x = 206,291.24 × 81,503.84
  4. Step 4: Simplify right side
    149,485.73x = 16,813,527,815.67
  5. Step 5: Solve for x
    x = 16,813,527,815.67/149,485.73
  6. Step 6: Final answer
    x = 112,475.80

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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.