Home / 212,852.20-319,116.30-107,746.60

Finding the Fourth Proportional to 212,852.20, 319,116.30 and 107,746.60

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Solution

The fourth proportional to 212,852.20, 319,116.30 and 107,746.60 is: 161,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,852.20 : 319,116.30 = 107,746.60 : x
  2. Step 2: Convert to fraction form
    212,852.20/319,116.30 = 107,746.60/x
  3. Step 3: Cross multiply
    212,852.20x = 319,116.30 × 107,746.60
  4. Step 4: Simplify right side
    212,852.20x = 34,383,696,329.58
  5. Step 5: Solve for x
    x = 34,383,696,329.58/212,852.20
  6. Step 6: Final answer
    x = 161,537.89

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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.