Home / 211,171.31-291,416.39-115,677.98

Finding the Fourth Proportional to 211,171.31, 291,416.39 and 115,677.98

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Solution

The fourth proportional to 211,171.31, 291,416.39 and 115,677.98 is: 159,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,171.31 : 291,416.39 = 115,677.98 : x
  2. Step 2: Convert to fraction form
    211,171.31/291,416.39 = 115,677.98/x
  3. Step 3: Cross multiply
    211,171.31x = 291,416.39 × 115,677.98
  4. Step 4: Simplify right side
    211,171.31x = 33,710,459,334.09
  5. Step 5: Solve for x
    x = 33,710,459,334.09/211,171.31
  6. Step 6: Final answer
    x = 159,635.60

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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.