Home / 211,170.69-291,415.53-115,677.36

Finding the Fourth Proportional to 211,170.69, 291,415.53 and 115,677.36

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Solution

The fourth proportional to 211,170.69, 291,415.53 and 115,677.36 is: 159,634.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,170.69 : 291,415.53 = 115,677.36 : x
  2. Step 2: Convert to fraction form
    211,170.69/291,415.53 = 115,677.36/x
  3. Step 3: Cross multiply
    211,170.69x = 291,415.53 × 115,677.36
  4. Step 4: Simplify right side
    211,170.69x = 33,710,177,716.32
  5. Step 5: Solve for x
    x = 33,710,177,716.32/211,170.69
  6. Step 6: Final answer
    x = 159,634.74

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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.