Home / 140,361.45-193,699.31-76,699.25

Finding the Fourth Proportional to 140,361.45, 193,699.31 and 76,699.25

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Solution

The fourth proportional to 140,361.45, 193,699.31 and 76,699.25 is: 105,845.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,361.45 : 193,699.31 = 76,699.25 : x
  2. Step 2: Convert to fraction form
    140,361.45/193,699.31 = 76,699.25/x
  3. Step 3: Cross multiply
    140,361.45x = 193,699.31 × 76,699.25
  4. Step 4: Simplify right side
    140,361.45x = 14,856,590,450.52
  5. Step 5: Solve for x
    x = 14,856,590,450.52/140,361.45
  6. Step 6: Final answer
    x = 105,845.23

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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.