Home / 213,025.80-319,149.90-129,822.60

Finding the Fourth Proportional to 213,025.80, 319,149.90 and 129,822.60

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Solution

The fourth proportional to 213,025.80, 319,149.90 and 129,822.60 is: 194,496.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,025.80 : 319,149.90 = 129,822.60 : x
  2. Step 2: Convert to fraction form
    213,025.80/319,149.90 = 129,822.60/x
  3. Step 3: Cross multiply
    213,025.80x = 319,149.90 × 129,822.60
  4. Step 4: Simplify right side
    213,025.80x = 41,432,869,807.74
  5. Step 5: Solve for x
    x = 41,432,869,807.74/213,025.80
  6. Step 6: Final answer
    x = 194,496.96

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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.