Home / 211,899.76-292,426.94-115,103.58

Finding the Fourth Proportional to 211,899.76, 292,426.94 and 115,103.58

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Solution

The fourth proportional to 211,899.76, 292,426.94 and 115,103.58 is: 158,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,899.76 : 292,426.94 = 115,103.58 : x
  2. Step 2: Convert to fraction form
    211,899.76/292,426.94 = 115,103.58/x
  3. Step 3: Cross multiply
    211,899.76x = 292,426.94 × 115,103.58
  4. Step 4: Simplify right side
    211,899.76x = 33,659,387,682.45
  5. Step 5: Solve for x
    x = 33,659,387,682.45/211,899.76
  6. Step 6: Final answer
    x = 158,845.80

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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.