Home / 213,909.56-295,198.67-117,111.78

Finding the Fourth Proportional to 213,909.56, 295,198.67 and 117,111.78

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Solution

The fourth proportional to 213,909.56, 295,198.67 and 117,111.78 is: 161,616.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,909.56 : 295,198.67 = 117,111.78 : x
  2. Step 2: Convert to fraction form
    213,909.56/295,198.67 = 117,111.78/x
  3. Step 3: Cross multiply
    213,909.56x = 295,198.67 × 117,111.78
  4. Step 4: Simplify right side
    213,909.56x = 34,571,241,990.11
  5. Step 5: Solve for x
    x = 34,571,241,990.11/213,909.56
  6. Step 6: Final answer
    x = 161,616.17

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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.