Home / 140,745.17-194,221.12-77,081.60

Finding the Fourth Proportional to 140,745.17, 194,221.12 and 77,081.60

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Solution

The fourth proportional to 140,745.17, 194,221.12 and 77,081.60 is: 106,368.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,745.17 : 194,221.12 = 77,081.60 : x
  2. Step 2: Convert to fraction form
    140,745.17/194,221.12 = 77,081.60/x
  3. Step 3: Cross multiply
    140,745.17x = 194,221.12 × 77,081.60
  4. Step 4: Simplify right side
    140,745.17x = 14,970,874,683.39
  5. Step 5: Solve for x
    x = 14,970,874,683.39/140,745.17
  6. Step 6: Final answer
    x = 106,368.66

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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.