Home / 207,971.31-287,010.63-117,325.44

Finding the Fourth Proportional to 207,971.31, 287,010.63 and 117,325.44

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Solution

The fourth proportional to 207,971.31, 287,010.63 and 117,325.44 is: 161,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,971.31 : 287,010.63 = 117,325.44 : x
  2. Step 2: Convert to fraction form
    207,971.31/287,010.63 = 117,325.44/x
  3. Step 3: Cross multiply
    207,971.31x = 287,010.63 × 117,325.44
  4. Step 4: Simplify right side
    207,971.31x = 33,673,648,449.43
  5. Step 5: Solve for x
    x = 33,673,648,449.43/207,971.31
  6. Step 6: Final answer
    x = 161,914.87

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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.