Home / 213,896.02-321,159.43-119,311

Finding the Fourth Proportional to 213,896.02, 321,159.43 and 119,311

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Solution

The fourth proportional to 213,896.02, 321,159.43 and 119,311 is: 179,142.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,896.02 : 321,159.43 = 119,311 : x
  2. Step 2: Convert to fraction form
    213,896.02/321,159.43 = 119,311/x
  3. Step 3: Cross multiply
    213,896.02x = 321,159.43 × 119,311
  4. Step 4: Simplify right side
    213,896.02x = 38,317,852,156.18
  5. Step 5: Solve for x
    x = 38,317,852,156.18/213,896.02
  6. Step 6: Final answer
    x = 179,142.43

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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.