Home / 68,095.14-102,143.43-20,717.95

Finding the Fourth Proportional to 68,095.14, 102,143.43 and 20,717.95

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Solution

The fourth proportional to 68,095.14, 102,143.43 and 20,717.95 is: 31,077.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,095.14 : 102,143.43 = 20,717.95 : x
  2. Step 2: Convert to fraction form
    68,095.14/102,143.43 = 20,717.95/x
  3. Step 3: Cross multiply
    68,095.14x = 102,143.43 × 20,717.95
  4. Step 4: Simplify right side
    68,095.14x = 2,116,201,964.85
  5. Step 5: Solve for x
    x = 2,116,201,964.85/68,095.14
  6. Step 6: Final answer
    x = 31,077.14

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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.