Home / 209,631.44-289,226.52-127,977.20

Finding the Fourth Proportional to 209,631.44, 289,226.52 and 127,977.20

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Solution

The fourth proportional to 209,631.44, 289,226.52 and 127,977.20 is: 176,568.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,631.44 : 289,226.52 = 127,977.20 : x
  2. Step 2: Convert to fraction form
    209,631.44/289,226.52 = 127,977.20/x
  3. Step 3: Cross multiply
    209,631.44x = 289,226.52 × 127,977.20
  4. Step 4: Simplify right side
    209,631.44x = 37,014,400,195.34
  5. Step 5: Solve for x
    x = 37,014,400,195.34/209,631.44
  6. Step 6: Final answer
    x = 176,568.94

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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.