Home / 163,855.20-245,523.60-137,416.80

Finding the Fourth Proportional to 163,855.20, 245,523.60 and 137,416.80

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Solution

The fourth proportional to 163,855.20, 245,523.60 and 137,416.80 is: 205,907.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,855.20 : 245,523.60 = 137,416.80 : x
  2. Step 2: Convert to fraction form
    163,855.20/245,523.60 = 137,416.80/x
  3. Step 3: Cross multiply
    163,855.20x = 245,523.60 × 137,416.80
  4. Step 4: Simplify right side
    163,855.20x = 33,739,067,436.48
  5. Step 5: Solve for x
    x = 33,739,067,436.48/163,855.20
  6. Step 6: Final answer
    x = 205,907.82

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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.