Home / 119,629.27-179,382.87-39,638.38

Finding the Fourth Proportional to 119,629.27, 179,382.87 and 39,638.38

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Solution

The fourth proportional to 119,629.27, 179,382.87 and 39,638.38 is: 59,437.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,629.27 : 179,382.87 = 39,638.38 : x
  2. Step 2: Convert to fraction form
    119,629.27/179,382.87 = 39,638.38/x
  3. Step 3: Cross multiply
    119,629.27x = 179,382.87 × 39,638.38
  4. Step 4: Simplify right side
    119,629.27x = 7,110,445,918.09
  5. Step 5: Solve for x
    x = 7,110,445,918.09/119,629.27
  6. Step 6: Final answer
    x = 59,437.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.