Home / 120,371.13-166,095.90-66,654.81

Finding the Fourth Proportional to 120,371.13, 166,095.90 and 66,654.81

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Solution

The fourth proportional to 120,371.13, 166,095.90 and 66,654.81 is: 91,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,371.13 : 166,095.90 = 66,654.81 : x
  2. Step 2: Convert to fraction form
    120,371.13/166,095.90 = 66,654.81/x
  3. Step 3: Cross multiply
    120,371.13x = 166,095.90 × 66,654.81
  4. Step 4: Simplify right side
    120,371.13x = 11,071,090,656.28
  5. Step 5: Solve for x
    x = 11,071,090,656.28/120,371.13
  6. Step 6: Final answer
    x = 91,974.63

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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.