Home / 208,085.24-312,054.06-74,929.70

Finding the Fourth Proportional to 208,085.24, 312,054.06 and 74,929.70

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Solution

The fourth proportional to 208,085.24, 312,054.06 and 74,929.70 is: 112,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,085.24 : 312,054.06 = 74,929.70 : x
  2. Step 2: Convert to fraction form
    208,085.24/312,054.06 = 74,929.70/x
  3. Step 3: Cross multiply
    208,085.24x = 312,054.06 × 74,929.70
  4. Step 4: Simplify right side
    208,085.24x = 23,382,117,099.58
  5. Step 5: Solve for x
    x = 23,382,117,099.58/208,085.24
  6. Step 6: Final answer
    x = 112,367.98

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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.