Home / 109,998.60-151,771.76-66,977.58

Finding the Fourth Proportional to 109,998.60, 151,771.76 and 66,977.58

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Solution

The fourth proportional to 109,998.60, 151,771.76 and 66,977.58 is: 92,413.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,998.60 : 151,771.76 = 66,977.58 : x
  2. Step 2: Convert to fraction form
    109,998.60/151,771.76 = 66,977.58/x
  3. Step 3: Cross multiply
    109,998.60x = 151,771.76 × 66,977.58
  4. Step 4: Simplify right side
    109,998.60x = 10,165,305,197.14
  5. Step 5: Solve for x
    x = 10,165,305,197.14/109,998.60
  6. Step 6: Final answer
    x = 92,413.04

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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.