Home / 211,145.36-291,385.32-120,499.52

Finding the Fourth Proportional to 211,145.36, 291,385.32 and 120,499.52

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Solution

The fourth proportional to 211,145.36, 291,385.32 and 120,499.52 is: 166,292.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,145.36 : 291,385.32 = 120,499.52 : x
  2. Step 2: Convert to fraction form
    211,145.36/291,385.32 = 120,499.52/x
  3. Step 3: Cross multiply
    211,145.36x = 291,385.32 × 120,499.52
  4. Step 4: Simplify right side
    211,145.36x = 35,111,789,738.12
  5. Step 5: Solve for x
    x = 35,111,789,738.12/211,145.36
  6. Step 6: Final answer
    x = 166,292.03

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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.