Home / 78,183.04-117,274.60-19,018.34

Finding the Fourth Proportional to 78,183.04, 117,274.60 and 19,018.34

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Solution

The fourth proportional to 78,183.04, 117,274.60 and 19,018.34 is: 28,527.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,183.04 : 117,274.60 = 19,018.34 : x
  2. Step 2: Convert to fraction form
    78,183.04/117,274.60 = 19,018.34/x
  3. Step 3: Cross multiply
    78,183.04x = 117,274.60 × 19,018.34
  4. Step 4: Simplify right side
    78,183.04x = 2,230,368,216.16
  5. Step 5: Solve for x
    x = 2,230,368,216.16/78,183.04
  6. Step 6: Final answer
    x = 28,527.52

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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.