Home / 213,881.04-321,403.14-114,111.72

Finding the Fourth Proportional to 213,881.04, 321,403.14 and 114,111.72

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Solution

The fourth proportional to 213,881.04, 321,403.14 and 114,111.72 is: 171,477.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,881.04 : 321,403.14 = 114,111.72 : x
  2. Step 2: Convert to fraction form
    213,881.04/321,403.14 = 114,111.72/x
  3. Step 3: Cross multiply
    213,881.04x = 321,403.14 × 114,111.72
  4. Step 4: Simplify right side
    213,881.04x = 36,675,865,118.80
  5. Step 5: Solve for x
    x = 36,675,865,118.80/213,881.04
  6. Step 6: Final answer
    x = 171,477.87

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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.