Home / 166,091.80-229,205.55-90,640.30

Finding the Fourth Proportional to 166,091.80, 229,205.55 and 90,640.30

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Solution

The fourth proportional to 166,091.80, 229,205.55 and 90,640.30 is: 125,083.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,091.80 : 229,205.55 = 90,640.30 : x
  2. Step 2: Convert to fraction form
    166,091.80/229,205.55 = 90,640.30/x
  3. Step 3: Cross multiply
    166,091.80x = 229,205.55 × 90,640.30
  4. Step 4: Simplify right side
    166,091.80x = 20,775,259,813.67
  5. Step 5: Solve for x
    x = 20,775,259,813.67/166,091.80
  6. Step 6: Final answer
    x = 125,083.00

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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.