Home / 211,065.96-291,258.18-115,573.80

Finding the Fourth Proportional to 211,065.96, 291,258.18 and 115,573.80

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Solution

The fourth proportional to 211,065.96, 291,258.18 and 115,573.80 is: 159,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,065.96 : 291,258.18 = 115,573.80 : x
  2. Step 2: Convert to fraction form
    211,065.96/291,258.18 = 115,573.80/x
  3. Step 3: Cross multiply
    211,065.96x = 291,258.18 × 115,573.80
  4. Step 4: Simplify right side
    211,065.96x = 33,661,814,643.68
  5. Step 5: Solve for x
    x = 33,661,814,643.68/211,065.96
  6. Step 6: Final answer
    x = 159,484.81

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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.