Home / 213,943.36-295,305.84-138,496.96

Finding the Fourth Proportional to 213,943.36, 295,305.84 and 138,496.96

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Solution

The fourth proportional to 213,943.36, 295,305.84 and 138,496.96 is: 191,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,943.36 : 295,305.84 = 138,496.96 : x
  2. Step 2: Convert to fraction form
    213,943.36/295,305.84 = 138,496.96/x
  3. Step 3: Cross multiply
    213,943.36x = 295,305.84 × 138,496.96
  4. Step 4: Simplify right side
    213,943.36x = 40,898,961,110.25
  5. Step 5: Solve for x
    x = 40,898,961,110.25/213,943.36
  6. Step 6: Final answer
    x = 191,167.24

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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.