Home / 211,589.83-291,993.97-120,947.76

Finding the Fourth Proportional to 211,589.83, 291,993.97 and 120,947.76

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Solution

The fourth proportional to 211,589.83, 291,993.97 and 120,947.76 is: 166,907.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,589.83 : 291,993.97 = 120,947.76 : x
  2. Step 2: Convert to fraction form
    211,589.83/291,993.97 = 120,947.76/x
  3. Step 3: Cross multiply
    211,589.83x = 291,993.97 × 120,947.76
  4. Step 4: Simplify right side
    211,589.83x = 35,316,015,572.65
  5. Step 5: Solve for x
    x = 35,316,015,572.65/211,589.83
  6. Step 6: Final answer
    x = 166,907.91

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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.