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Finding the Fourth Proportional to 188,455.36, 282,696.88 and 70,126.68

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Solution

The fourth proportional to 188,455.36, 282,696.88 and 70,126.68 is: 105,195.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,455.36 : 282,696.88 = 70,126.68 : x
  2. Step 2: Convert to fraction form
    188,455.36/282,696.88 = 70,126.68/x
  3. Step 3: Cross multiply
    188,455.36x = 282,696.88 × 70,126.68
  4. Step 4: Simplify right side
    188,455.36x = 19,824,593,640.76
  5. Step 5: Solve for x
    x = 19,824,593,640.76/188,455.36
  6. Step 6: Final answer
    x = 105,195.17

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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.