Home / 103,198.71-142,429.79-62,935.83

Finding the Fourth Proportional to 103,198.71, 142,429.79 and 62,935.83

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Solution

The fourth proportional to 103,198.71, 142,429.79 and 62,935.83 is: 86,860.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,198.71 : 142,429.79 = 62,935.83 : x
  2. Step 2: Convert to fraction form
    103,198.71/142,429.79 = 62,935.83/x
  3. Step 3: Cross multiply
    103,198.71x = 142,429.79 × 62,935.83
  4. Step 4: Simplify right side
    103,198.71x = 8,963,936,735.70
  5. Step 5: Solve for x
    x = 8,963,936,735.70/103,198.71
  6. Step 6: Final answer
    x = 86,860.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.