Home / 211,086.64-291,302.94-115,591.66

Finding the Fourth Proportional to 211,086.64, 291,302.94 and 115,591.66

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Solution

The fourth proportional to 211,086.64, 291,302.94 and 115,591.66 is: 159,518.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,086.64 : 291,302.94 = 115,591.66 : x
  2. Step 2: Convert to fraction form
    211,086.64/291,302.94 = 115,591.66/x
  3. Step 3: Cross multiply
    211,086.64x = 291,302.94 × 115,591.66
  4. Step 4: Simplify right side
    211,086.64x = 33,672,190,397.48
  5. Step 5: Solve for x
    x = 33,672,190,397.48/211,086.64
  6. Step 6: Final answer
    x = 159,518.34

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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.