Home / 203,516.34-280,608.48-131,870.22

Finding the Fourth Proportional to 203,516.34, 280,608.48 and 131,870.22

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Solution

The fourth proportional to 203,516.34, 280,608.48 and 131,870.22 is: 181,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,516.34 : 280,608.48 = 131,870.22 : x
  2. Step 2: Convert to fraction form
    203,516.34/280,608.48 = 131,870.22/x
  3. Step 3: Cross multiply
    203,516.34x = 280,608.48 × 131,870.22
  4. Step 4: Simplify right side
    203,516.34x = 37,003,901,991.47
  5. Step 5: Solve for x
    x = 37,003,901,991.47/203,516.34
  6. Step 6: Final answer
    x = 181,822.76

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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.