Home / 213,052.32-319,335.72-133,127.28

Finding the Fourth Proportional to 213,052.32, 319,335.72 and 133,127.28

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Solution

The fourth proportional to 213,052.32, 319,335.72 and 133,127.28 is: 199,539.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,052.32 : 319,335.72 = 133,127.28 : x
  2. Step 2: Convert to fraction form
    213,052.32/319,335.72 = 133,127.28/x
  3. Step 3: Cross multiply
    213,052.32x = 319,335.72 × 133,127.28
  4. Step 4: Simplify right side
    213,052.32x = 42,512,295,810.44
  5. Step 5: Solve for x
    x = 42,512,295,810.44/213,052.32
  6. Step 6: Final answer
    x = 199,539.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.