Home / 168,621.12-253,106.87-112,850.95

Finding the Fourth Proportional to 168,621.12, 253,106.87 and 112,850.95

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Solution

The fourth proportional to 168,621.12, 253,106.87 and 112,850.95 is: 169,393.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,621.12 : 253,106.87 = 112,850.95 : x
  2. Step 2: Convert to fraction form
    168,621.12/253,106.87 = 112,850.95/x
  3. Step 3: Cross multiply
    168,621.12x = 253,106.87 × 112,850.95
  4. Step 4: Simplify right side
    168,621.12x = 28,563,350,380.39
  5. Step 5: Solve for x
    x = 28,563,350,380.39/168,621.12
  6. Step 6: Final answer
    x = 169,393.67

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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.