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Finding the Fourth Proportional to 180,189.45, 248,657.72 and 99,620.37

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Solution

The fourth proportional to 180,189.45, 248,657.72 and 99,620.37 is: 137,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,189.45 : 248,657.72 = 99,620.37 : x
  2. Step 2: Convert to fraction form
    180,189.45/248,657.72 = 99,620.37/x
  3. Step 3: Cross multiply
    180,189.45x = 248,657.72 × 99,620.37
  4. Step 4: Simplify right side
    180,189.45x = 24,771,373,571.65
  5. Step 5: Solve for x
    x = 24,771,373,571.65/180,189.45
  6. Step 6: Final answer
    x = 137,474.05

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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.