Home / 213,921.82-295,243-123,260.40

Finding the Fourth Proportional to 213,921.82, 295,243 and 123,260.40

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Solution

The fourth proportional to 213,921.82, 295,243 and 123,260.40 is: 170,117.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,921.82 : 295,243 = 123,260.40 : x
  2. Step 2: Convert to fraction form
    213,921.82/295,243 = 123,260.40/x
  3. Step 3: Cross multiply
    213,921.82x = 295,243 × 123,260.40
  4. Step 4: Simplify right side
    213,921.82x = 36,391,770,277.20
  5. Step 5: Solve for x
    x = 36,391,770,277.20/213,921.82
  6. Step 6: Final answer
    x = 170,117.15

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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.