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Finding the Fourth Proportional to 163,674.80, 245,668.80 and 84,845.60

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Solution

The fourth proportional to 163,674.80, 245,668.80 and 84,845.60 is: 127,349.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,674.80 : 245,668.80 = 84,845.60 : x
  2. Step 2: Convert to fraction form
    163,674.80/245,668.80 = 84,845.60/x
  3. Step 3: Cross multiply
    163,674.80x = 245,668.80 × 84,845.60
  4. Step 4: Simplify right side
    163,674.80x = 20,843,916,737.28
  5. Step 5: Solve for x
    x = 20,843,916,737.28/163,674.80
  6. Step 6: Final answer
    x = 127,349.58

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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.