Home / 188,715.92-283,089.24-53,790.30

Finding the Fourth Proportional to 188,715.92, 283,089.24 and 53,790.30

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Solution

The fourth proportional to 188,715.92, 283,089.24 and 53,790.30 is: 80,689.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,715.92 : 283,089.24 = 53,790.30 : x
  2. Step 2: Convert to fraction form
    188,715.92/283,089.24 = 53,790.30/x
  3. Step 3: Cross multiply
    188,715.92x = 283,089.24 × 53,790.30
  4. Step 4: Simplify right side
    188,715.92x = 15,227,455,146.37
  5. Step 5: Solve for x
    x = 15,227,455,146.37/188,715.92
  6. Step 6: Final answer
    x = 80,689.83

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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.