Home / 213,026.80-319,151.40-129,823.60

Finding the Fourth Proportional to 213,026.80, 319,151.40 and 129,823.60

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Solution

The fourth proportional to 213,026.80, 319,151.40 and 129,823.60 is: 194,498.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,026.80 : 319,151.40 = 129,823.60 : x
  2. Step 2: Convert to fraction form
    213,026.80/319,151.40 = 129,823.60/x
  3. Step 3: Cross multiply
    213,026.80x = 319,151.40 × 129,823.60
  4. Step 4: Simplify right side
    213,026.80x = 41,433,383,693.04
  5. Step 5: Solve for x
    x = 41,433,383,693.04/213,026.80
  6. Step 6: Final answer
    x = 194,498.46

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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.