Home / 211,146.82-291,382.74-115,655.12

Finding the Fourth Proportional to 211,146.82, 291,382.74 and 115,655.12

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Solution

The fourth proportional to 211,146.82, 291,382.74 and 115,655.12 is: 159,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,146.82 : 291,382.74 = 115,655.12 : x
  2. Step 2: Convert to fraction form
    211,146.82/291,382.74 = 115,655.12/x
  3. Step 3: Cross multiply
    211,146.82x = 291,382.74 × 115,655.12
  4. Step 4: Simplify right side
    211,146.82x = 33,699,905,760.63
  5. Step 5: Solve for x
    x = 33,699,905,760.63/211,146.82
  6. Step 6: Final answer
    x = 159,604.14

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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.