Home / 211,434.72-291,777.44-115,940.58

Finding the Fourth Proportional to 211,434.72, 291,777.44 and 115,940.58

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Solution

The fourth proportional to 211,434.72, 291,777.44 and 115,940.58 is: 159,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,434.72 : 291,777.44 = 115,940.58 : x
  2. Step 2: Convert to fraction form
    211,434.72/291,777.44 = 115,940.58/x
  3. Step 3: Cross multiply
    211,434.72x = 291,777.44 × 115,940.58
  4. Step 4: Simplify right side
    211,434.72x = 33,828,845,044.81
  5. Step 5: Solve for x
    x = 33,828,845,044.81/211,434.72
  6. Step 6: Final answer
    x = 159,996.64

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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.