Home / 136,883.46-205,155.66-77,539.23

Finding the Fourth Proportional to 136,883.46, 205,155.66 and 77,539.23

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Solution

The fourth proportional to 136,883.46, 205,155.66 and 77,539.23 is: 116,212.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,883.46 : 205,155.66 = 77,539.23 : x
  2. Step 2: Convert to fraction form
    136,883.46/205,155.66 = 77,539.23/x
  3. Step 3: Cross multiply
    136,883.46x = 205,155.66 × 77,539.23
  4. Step 4: Simplify right side
    136,883.46x = 15,907,611,906.54
  5. Step 5: Solve for x
    x = 15,907,611,906.54/136,883.46
  6. Step 6: Final answer
    x = 116,212.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.