Home / 189,121.83-283,768.85-70,802.38

Finding the Fourth Proportional to 189,121.83, 283,768.85 and 70,802.38

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Solution

The fourth proportional to 189,121.83, 283,768.85 and 70,802.38 is: 106,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,121.83 : 283,768.85 = 70,802.38 : x
  2. Step 2: Convert to fraction form
    189,121.83/283,768.85 = 70,802.38/x
  3. Step 3: Cross multiply
    189,121.83x = 283,768.85 × 70,802.38
  4. Step 4: Simplify right side
    189,121.83x = 20,091,509,949.86
  5. Step 5: Solve for x
    x = 20,091,509,949.86/189,121.83
  6. Step 6: Final answer
    x = 106,235.81

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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.