Home / 208,095.24-312,069.06-74,939.70

Finding the Fourth Proportional to 208,095.24, 312,069.06 and 74,939.70

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Solution

The fourth proportional to 208,095.24, 312,069.06 and 74,939.70 is: 112,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,095.24 : 312,069.06 = 74,939.70 : x
  2. Step 2: Convert to fraction form
    208,095.24/312,069.06 = 74,939.70/x
  3. Step 3: Cross multiply
    208,095.24x = 312,069.06 × 74,939.70
  4. Step 4: Simplify right side
    208,095.24x = 23,386,361,735.68
  5. Step 5: Solve for x
    x = 23,386,361,735.68/208,095.24
  6. Step 6: Final answer
    x = 112,382.97

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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.