Home / 213,237.20-319,702.20-119,771.60

Finding the Fourth Proportional to 213,237.20, 319,702.20 and 119,771.60

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Solution

The fourth proportional to 213,237.20, 319,702.20 and 119,771.60 is: 179,571.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,237.20 : 319,702.20 = 119,771.60 : x
  2. Step 2: Convert to fraction form
    213,237.20/319,702.20 = 119,771.60/x
  3. Step 3: Cross multiply
    213,237.20x = 319,702.20 × 119,771.60
  4. Step 4: Simplify right side
    213,237.20x = 38,291,244,017.52
  5. Step 5: Solve for x
    x = 38,291,244,017.52/213,237.20
  6. Step 6: Final answer
    x = 179,571.13

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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.