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Finding the Fourth Proportional to 188,455.35, 282,696.87 and 70,126.68

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Solution

The fourth proportional to 188,455.35, 282,696.87 and 70,126.68 is: 105,195.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,455.35 : 282,696.87 = 70,126.68 : x
  2. Step 2: Convert to fraction form
    188,455.35/282,696.87 = 70,126.68/x
  3. Step 3: Cross multiply
    188,455.35x = 282,696.87 × 70,126.68
  4. Step 4: Simplify right side
    188,455.35x = 19,824,592,939.49
  5. Step 5: Solve for x
    x = 19,824,592,939.49/188,455.35
  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.