Home / 211,573.24-291,990.85-120,911.50

Finding the Fourth Proportional to 211,573.24, 291,990.85 and 120,911.50

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Solution

The fourth proportional to 211,573.24, 291,990.85 and 120,911.50 is: 166,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,573.24 : 291,990.85 = 120,911.50 : x
  2. Step 2: Convert to fraction form
    211,573.24/291,990.85 = 120,911.50/x
  3. Step 3: Cross multiply
    211,573.24x = 291,990.85 × 120,911.50
  4. Step 4: Simplify right side
    211,573.24x = 35,305,052,389.75
  5. Step 5: Solve for x
    x = 35,305,052,389.75/211,573.24
  6. Step 6: Final answer
    x = 166,869.17

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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.