Home / 219,183.14-302,541.65-128,575.73

Finding the Fourth Proportional to 219,183.14, 302,541.65 and 128,575.73

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Solution

The fourth proportional to 219,183.14, 302,541.65 and 128,575.73 is: 177,474.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,183.14 : 302,541.65 = 128,575.73 : x
  2. Step 2: Convert to fraction form
    219,183.14/302,541.65 = 128,575.73/x
  3. Step 3: Cross multiply
    219,183.14x = 302,541.65 × 128,575.73
  4. Step 4: Simplify right side
    219,183.14x = 38,899,511,348.57
  5. Step 5: Solve for x
    x = 38,899,511,348.57/219,183.14
  6. Step 6: Final answer
    x = 177,474.93

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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.