Home / 213,734.40-294,900.48-138,192

Finding the Fourth Proportional to 213,734.40, 294,900.48 and 138,192

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Solution

The fourth proportional to 213,734.40, 294,900.48 and 138,192 is: 190,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,734.40 : 294,900.48 = 138,192 : x
  2. Step 2: Convert to fraction form
    213,734.40/294,900.48 = 138,192/x
  3. Step 3: Cross multiply
    213,734.40x = 294,900.48 × 138,192
  4. Step 4: Simplify right side
    213,734.40x = 40,752,887,132.16
  5. Step 5: Solve for x
    x = 40,752,887,132.16/213,734.40
  6. Step 6: Final answer
    x = 190,670.70

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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.