Home / 137,633.21-206,469.05-42,870.26

Finding the Fourth Proportional to 137,633.21, 206,469.05 and 42,870.26

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Solution

The fourth proportional to 137,633.21, 206,469.05 and 42,870.26 is: 64,311.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,633.21 : 206,469.05 = 42,870.26 : x
  2. Step 2: Convert to fraction form
    137,633.21/206,469.05 = 42,870.26/x
  3. Step 3: Cross multiply
    137,633.21x = 206,469.05 × 42,870.26
  4. Step 4: Simplify right side
    137,633.21x = 8,851,382,478.80
  5. Step 5: Solve for x
    x = 8,851,382,478.80/137,633.21
  6. Step 6: Final answer
    x = 64,311.39

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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.