Home / 199,145.82-298,718.76-115,981.50

Finding the Fourth Proportional to 199,145.82, 298,718.76 and 115,981.50

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Solution

The fourth proportional to 199,145.82, 298,718.76 and 115,981.50 is: 173,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,145.82 : 298,718.76 = 115,981.50 : x
  2. Step 2: Convert to fraction form
    199,145.82/298,718.76 = 115,981.50/x
  3. Step 3: Cross multiply
    199,145.82x = 298,718.76 × 115,981.50
  4. Step 4: Simplify right side
    199,145.82x = 34,645,849,862.94
  5. Step 5: Solve for x
    x = 34,645,849,862.94/199,145.82
  6. Step 6: Final answer
    x = 173,972.27

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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.