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Finding the Fourth Proportional to 188,079.87, 282,168.41 and 69,784.95

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Solution

The fourth proportional to 188,079.87, 282,168.41 and 69,784.95 is: 104,695.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,079.87 : 282,168.41 = 69,784.95 : x
  2. Step 2: Convert to fraction form
    188,079.87/282,168.41 = 69,784.95/x
  3. Step 3: Cross multiply
    188,079.87x = 282,168.41 × 69,784.95
  4. Step 4: Simplify right side
    188,079.87x = 19,691,108,034.50
  5. Step 5: Solve for x
    x = 19,691,108,034.50/188,079.87
  6. Step 6: Final answer
    x = 104,695.46

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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.