Home / 211,385.73-291,730.71-115,911.03

Finding the Fourth Proportional to 211,385.73, 291,730.71 and 115,911.03

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Solution

The fourth proportional to 211,385.73, 291,730.71 and 115,911.03 is: 159,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,385.73 : 291,730.71 = 115,911.03 : x
  2. Step 2: Convert to fraction form
    211,385.73/291,730.71 = 115,911.03/x
  3. Step 3: Cross multiply
    211,385.73x = 291,730.71 × 115,911.03
  4. Step 4: Simplify right side
    211,385.73x = 33,814,807,078.73
  5. Step 5: Solve for x
    x = 33,814,807,078.73/211,385.73
  6. Step 6: Final answer
    x = 159,967.31

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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.