Home / 120,349.31-166,083.36-66,635.27

Finding the Fourth Proportional to 120,349.31, 166,083.36 and 66,635.27

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Solution

The fourth proportional to 120,349.31, 166,083.36 and 66,635.27 is: 91,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,349.31 : 166,083.36 = 66,635.27 : x
  2. Step 2: Convert to fraction form
    120,349.31/166,083.36 = 66,635.27/x
  3. Step 3: Cross multiply
    120,349.31x = 166,083.36 × 66,635.27
  4. Step 4: Simplify right side
    120,349.31x = 11,067,009,536.11
  5. Step 5: Solve for x
    x = 11,067,009,536.11/120,349.31
  6. Step 6: Final answer
    x = 91,957.40

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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.