Home / 211,014.60-291,203.62-115,519.72

Finding the Fourth Proportional to 211,014.60, 291,203.62 and 115,519.72

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Solution

The fourth proportional to 211,014.60, 291,203.62 and 115,519.72 is: 159,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,014.60 : 291,203.62 = 115,519.72 : x
  2. Step 2: Convert to fraction form
    211,014.60/291,203.62 = 115,519.72/x
  3. Step 3: Cross multiply
    211,014.60x = 291,203.62 × 115,519.72
  4. Step 4: Simplify right side
    211,014.60x = 33,639,760,645.39
  5. Step 5: Solve for x
    x = 33,639,760,645.39/211,014.60
  6. Step 6: Final answer
    x = 159,419.11

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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.