Home / 211,191.16-291,436.32-115,696.96

Finding the Fourth Proportional to 211,191.16, 291,436.32 and 115,696.96

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Solution

The fourth proportional to 211,191.16, 291,436.32 and 115,696.96 is: 159,657.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,191.16 : 291,436.32 = 115,696.96 : x
  2. Step 2: Convert to fraction form
    211,191.16/291,436.32 = 115,696.96/x
  3. Step 3: Cross multiply
    211,191.16x = 291,436.32 × 115,696.96
  4. Step 4: Simplify right side
    211,191.16x = 33,718,296,257.59
  5. Step 5: Solve for x
    x = 33,718,296,257.59/211,191.16
  6. Step 6: Final answer
    x = 159,657.71

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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.