Home / 140,773.20-194,267.10-77,111.25

Finding the Fourth Proportional to 140,773.20, 194,267.10 and 77,111.25

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Solution

The fourth proportional to 140,773.20, 194,267.10 and 77,111.25 is: 106,413.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,773.20 : 194,267.10 = 77,111.25 : x
  2. Step 2: Convert to fraction form
    140,773.20/194,267.10 = 77,111.25/x
  3. Step 3: Cross multiply
    140,773.20x = 194,267.10 × 77,111.25
  4. Step 4: Simplify right side
    140,773.20x = 14,980,178,914.88
  5. Step 5: Solve for x
    x = 14,980,178,914.88/140,773.20
  6. Step 6: Final answer
    x = 106,413.57

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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.