Home / 120,712.74-166,582.36-66,998.22

Finding the Fourth Proportional to 120,712.74, 166,582.36 and 66,998.22

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Solution

The fourth proportional to 120,712.74, 166,582.36 and 66,998.22 is: 92,456.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,712.74 : 166,582.36 = 66,998.22 : x
  2. Step 2: Convert to fraction form
    120,712.74/166,582.36 = 66,998.22/x
  3. Step 3: Cross multiply
    120,712.74x = 166,582.36 × 66,998.22
  4. Step 4: Simplify right side
    120,712.74x = 11,160,721,603.40
  5. Step 5: Solve for x
    x = 11,160,721,603.40/120,712.74
  6. Step 6: Final answer
    x = 92,456.87

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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.