Home / 120,359.07-166,097.25-66,643.97

Finding the Fourth Proportional to 120,359.07, 166,097.25 and 66,643.97

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Solution

The fourth proportional to 120,359.07, 166,097.25 and 66,643.97 is: 91,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,359.07 : 166,097.25 = 66,643.97 : x
  2. Step 2: Convert to fraction form
    120,359.07/166,097.25 = 66,643.97/x
  3. Step 3: Cross multiply
    120,359.07x = 166,097.25 × 66,643.97
  4. Step 4: Simplify right side
    120,359.07x = 11,069,379,315.60
  5. Step 5: Solve for x
    x = 11,069,379,315.60/120,359.07
  6. Step 6: Final answer
    x = 91,969.63

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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.