Home / 68,186.16-102,246.42-28,721.74

Finding the Fourth Proportional to 68,186.16, 102,246.42 and 28,721.74

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Solution

The fourth proportional to 68,186.16, 102,246.42 and 28,721.74 is: 43,068.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,186.16 : 102,246.42 = 28,721.74 : x
  2. Step 2: Convert to fraction form
    68,186.16/102,246.42 = 28,721.74/x
  3. Step 3: Cross multiply
    68,186.16x = 102,246.42 × 28,721.74
  4. Step 4: Simplify right side
    68,186.16x = 2,936,695,091.17
  5. Step 5: Solve for x
    x = 2,936,695,091.17/68,186.16
  6. Step 6: Final answer
    x = 43,068.79

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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.