Home / 211,168.16-291,404.20-115,675.64

Finding the Fourth Proportional to 211,168.16, 291,404.20 and 115,675.64

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Solution

The fourth proportional to 211,168.16, 291,404.20 and 115,675.64 is: 159,628.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,168.16 : 291,404.20 = 115,675.64 : x
  2. Step 2: Convert to fraction form
    211,168.16/291,404.20 = 115,675.64/x
  3. Step 3: Cross multiply
    211,168.16x = 291,404.20 × 115,675.64
  4. Step 4: Simplify right side
    211,168.16x = 33,708,367,333.69
  5. Step 5: Solve for x
    x = 33,708,367,333.69/211,168.16
  6. Step 6: Final answer
    x = 159,628.08

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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.