Home / 215,953.05-298,013.18-119,157.78

Finding the Fourth Proportional to 215,953.05, 298,013.18 and 119,157.78

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Solution

The fourth proportional to 215,953.05, 298,013.18 and 119,157.78 is: 164,436.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,953.05 : 298,013.18 = 119,157.78 : x
  2. Step 2: Convert to fraction form
    215,953.05/298,013.18 = 119,157.78/x
  3. Step 3: Cross multiply
    215,953.05x = 298,013.18 × 119,157.78
  4. Step 4: Simplify right side
    215,953.05x = 35,510,588,343.75
  5. Step 5: Solve for x
    x = 35,510,588,343.75/215,953.05
  6. Step 6: Final answer
    x = 164,436.61

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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.