Home / 163,858.20-245,528.10-137,419.80

Finding the Fourth Proportional to 163,858.20, 245,528.10 and 137,419.80

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Solution

The fourth proportional to 163,858.20, 245,528.10 and 137,419.80 is: 205,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,858.20 : 245,528.10 = 137,419.80 : x
  2. Step 2: Convert to fraction form
    163,858.20/245,528.10 = 137,419.80/x
  3. Step 3: Cross multiply
    163,858.20x = 245,528.10 × 137,419.80
  4. Step 4: Simplify right side
    163,858.20x = 33,740,422,396.38
  5. Step 5: Solve for x
    x = 33,740,422,396.38/163,858.20
  6. Step 6: Final answer
    x = 205,912.32

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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.