Home / 211,154.58-291,393.35-115,664.69

Finding the Fourth Proportional to 211,154.58, 291,393.35 and 115,664.69

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Solution

The fourth proportional to 211,154.58, 291,393.35 and 115,664.69 is: 159,617.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,154.58 : 291,393.35 = 115,664.69 : x
  2. Step 2: Convert to fraction form
    211,154.58/291,393.35 = 115,664.69/x
  3. Step 3: Cross multiply
    211,154.58x = 291,393.35 × 115,664.69
  4. Step 4: Simplify right side
    211,154.58x = 33,703,919,460.52
  5. Step 5: Solve for x
    x = 33,703,919,460.52/211,154.58
  6. Step 6: Final answer
    x = 159,617.28

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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.