Home / 213,141.12-294,083.20-136,625.28

Finding the Fourth Proportional to 213,141.12, 294,083.20 and 136,625.28

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Solution

The fourth proportional to 213,141.12, 294,083.20 and 136,625.28 is: 188,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,141.12 : 294,083.20 = 136,625.28 : x
  2. Step 2: Convert to fraction form
    213,141.12/294,083.20 = 136,625.28/x
  3. Step 3: Cross multiply
    213,141.12x = 294,083.20 × 136,625.28
  4. Step 4: Simplify right side
    213,141.12x = 40,179,199,543.30
  5. Step 5: Solve for x
    x = 40,179,199,543.30/213,141.12
  6. Step 6: Final answer
    x = 188,509.85

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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.