Home / 163,487.36-245,277.94-68,668.78

Finding the Fourth Proportional to 163,487.36, 245,277.94 and 68,668.78

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Solution

The fourth proportional to 163,487.36, 245,277.94 and 68,668.78 is: 103,022.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,487.36 : 245,277.94 = 68,668.78 : x
  2. Step 2: Convert to fraction form
    163,487.36/245,277.94 = 68,668.78/x
  3. Step 3: Cross multiply
    163,487.36x = 245,277.94 × 68,668.78
  4. Step 4: Simplify right side
    163,487.36x = 16,842,936,115.85
  5. Step 5: Solve for x
    x = 16,842,936,115.85/163,487.36
  6. Step 6: Final answer
    x = 103,022.87

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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.