Home / 213,180.54-294,038.75-136,721.81

Finding the Fourth Proportional to 213,180.54, 294,038.75 and 136,721.81

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Solution

The fourth proportional to 213,180.54, 294,038.75 and 136,721.81 is: 188,579.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,180.54 : 294,038.75 = 136,721.81 : x
  2. Step 2: Convert to fraction form
    213,180.54/294,038.75 = 136,721.81/x
  3. Step 3: Cross multiply
    213,180.54x = 294,038.75 × 136,721.81
  4. Step 4: Simplify right side
    213,180.54x = 40,201,507,956.33
  5. Step 5: Solve for x
    x = 40,201,507,956.33/213,180.54
  6. Step 6: Final answer
    x = 188,579.63

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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.