Home / 126,091.13-173,907.32-80,773.32

Finding the Fourth Proportional to 126,091.13, 173,907.32 and 80,773.32

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Solution

The fourth proportional to 126,091.13, 173,907.32 and 80,773.32 is: 111,404.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,091.13 : 173,907.32 = 80,773.32 : x
  2. Step 2: Convert to fraction form
    126,091.13/173,907.32 = 80,773.32/x
  3. Step 3: Cross multiply
    126,091.13x = 173,907.32 × 80,773.32
  4. Step 4: Simplify right side
    126,091.13x = 14,047,071,204.84
  5. Step 5: Solve for x
    x = 14,047,071,204.84/126,091.13
  6. Step 6: Final answer
    x = 111,404.12

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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.