Home / 213,907.12-295,391.85-137,558.80

Finding the Fourth Proportional to 213,907.12, 295,391.85 and 137,558.80

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Solution

The fourth proportional to 213,907.12, 295,391.85 and 137,558.80 is: 189,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,907.12 : 295,391.85 = 137,558.80 : x
  2. Step 2: Convert to fraction form
    213,907.12/295,391.85 = 137,558.80/x
  3. Step 3: Cross multiply
    213,907.12x = 295,391.85 × 137,558.80
  4. Step 4: Simplify right side
    213,907.12x = 40,633,748,142.41
  5. Step 5: Solve for x
    x = 40,633,748,142.41/213,907.12
  6. Step 6: Final answer
    x = 189,959.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.