Home / 140,304.21-193,612.57-76,629.70

Finding the Fourth Proportional to 140,304.21, 193,612.57 and 76,629.70

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Solution

The fourth proportional to 140,304.21, 193,612.57 and 76,629.70 is: 105,745.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,304.21 : 193,612.57 = 76,629.70 : x
  2. Step 2: Convert to fraction form
    140,304.21/193,612.57 = 76,629.70/x
  3. Step 3: Cross multiply
    140,304.21x = 193,612.57 × 76,629.70
  4. Step 4: Simplify right side
    140,304.21x = 14,836,473,155.33
  5. Step 5: Solve for x
    x = 14,836,473,155.33/140,304.21
  6. Step 6: Final answer
    x = 105,745.03

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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.