Home / 213,896.18-321,159.68-119,311.16

Finding the Fourth Proportional to 213,896.18, 321,159.68 and 119,311.16

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Solution

The fourth proportional to 213,896.18, 321,159.68 and 119,311.16 is: 179,142.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,896.18 : 321,159.68 = 119,311.16 : x
  2. Step 2: Convert to fraction form
    213,896.18/321,159.68 = 119,311.16/x
  3. Step 3: Cross multiply
    213,896.18x = 321,159.68 × 119,311.16
  4. Step 4: Simplify right side
    213,896.18x = 38,317,934,172.37
  5. Step 5: Solve for x
    x = 38,317,934,172.37/213,896.18
  6. Step 6: Final answer
    x = 179,142.68

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1.5x scale

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.