Home / 163,661.20-245,232.60-137,222.80

Finding the Fourth Proportional to 163,661.20, 245,232.60 and 137,222.80

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Solution

The fourth proportional to 163,661.20, 245,232.60 and 137,222.80 is: 205,616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,661.20 : 245,232.60 = 137,222.80 : x
  2. Step 2: Convert to fraction form
    163,661.20/245,232.60 = 137,222.80/x
  3. Step 3: Cross multiply
    163,661.20x = 245,232.60 × 137,222.80
  4. Step 4: Simplify right side
    163,661.20x = 33,651,504,023.28
  5. Step 5: Solve for x
    x = 33,651,504,023.28/163,661.20
  6. Step 6: Final answer
    x = 205,616.87

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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.