Home / 211,223.87-291,523.35-120,583.65

Finding the Fourth Proportional to 211,223.87, 291,523.35 and 120,583.65

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Solution

The fourth proportional to 211,223.87, 291,523.35 and 120,583.65 is: 166,425.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,223.87 : 291,523.35 = 120,583.65 : x
  2. Step 2: Convert to fraction form
    211,223.87/291,523.35 = 120,583.65/x
  3. Step 3: Cross multiply
    211,223.87x = 291,523.35 × 120,583.65
  4. Step 4: Simplify right side
    211,223.87x = 35,152,949,603.23
  5. Step 5: Solve for x
    x = 35,152,949,603.23/211,223.87
  6. Step 6: Final answer
    x = 166,425.08

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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.