Home / 211,036.69-291,219.09-115,524.91

Finding the Fourth Proportional to 211,036.69, 291,219.09 and 115,524.91

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Solution

The fourth proportional to 211,036.69, 291,219.09 and 115,524.91 is: 159,418.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,036.69 : 291,219.09 = 115,524.91 : x
  2. Step 2: Convert to fraction form
    211,036.69/291,219.09 = 115,524.91/x
  3. Step 3: Cross multiply
    211,036.69x = 291,219.09 × 115,524.91
  4. Step 4: Simplify right side
    211,036.69x = 33,643,057,706.44
  5. Step 5: Solve for x
    x = 33,643,057,706.44/211,036.69
  6. Step 6: Final answer
    x = 159,418.05

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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.