Home / 120,601.69-166,440.54-66,904

Finding the Fourth Proportional to 120,601.69, 166,440.54 and 66,904

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Solution

The fourth proportional to 120,601.69, 166,440.54 and 66,904 is: 92,333.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,601.69 : 166,440.54 = 66,904 : x
  2. Step 2: Convert to fraction form
    120,601.69/166,440.54 = 66,904/x
  3. Step 3: Cross multiply
    120,601.69x = 166,440.54 × 66,904
  4. Step 4: Simplify right side
    120,601.69x = 11,135,537,888.16
  5. Step 5: Solve for x
    x = 11,135,537,888.16/120,601.69
  6. Step 6: Final answer
    x = 92,333.18

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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.