Home / 213,911.04-321,448.14-114,141.72

Finding the Fourth Proportional to 213,911.04, 321,448.14 and 114,141.72

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Solution

The fourth proportional to 213,911.04, 321,448.14 and 114,141.72 is: 171,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,911.04 : 321,448.14 = 114,141.72 : x
  2. Step 2: Convert to fraction form
    213,911.04/321,448.14 = 114,141.72/x
  3. Step 3: Cross multiply
    213,911.04x = 321,448.14 × 114,141.72
  4. Step 4: Simplify right side
    213,911.04x = 36,690,643,590.40
  5. Step 5: Solve for x
    x = 36,690,643,590.40/213,911.04
  6. Step 6: Final answer
    x = 171,522.91

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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.