Home / 211,190.10-291,456.27-120,564.42

Finding the Fourth Proportional to 211,190.10, 291,456.27 and 120,564.42

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Solution

The fourth proportional to 211,190.10, 291,456.27 and 120,564.42 is: 166,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,190.10 : 291,456.27 = 120,564.42 : x
  2. Step 2: Convert to fraction form
    211,190.10/291,456.27 = 120,564.42/x
  3. Step 3: Cross multiply
    211,190.10x = 291,456.27 × 120,564.42
  4. Step 4: Simplify right side
    211,190.10x = 35,139,256,147.91
  5. Step 5: Solve for x
    x = 35,139,256,147.91/211,190.10
  6. Step 6: Final answer
    x = 166,386.85

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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.