Home / 214,117.92-321,075.54-79,137.72

Finding the Fourth Proportional to 214,117.92, 321,075.54 and 79,137.72

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Solution

The fourth proportional to 214,117.92, 321,075.54 and 79,137.72 is: 118,669.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,117.92 : 321,075.54 = 79,137.72 : x
  2. Step 2: Convert to fraction form
    214,117.92/321,075.54 = 79,137.72/x
  3. Step 3: Cross multiply
    214,117.92x = 321,075.54 × 79,137.72
  4. Step 4: Simplify right side
    214,117.92x = 25,409,186,183.37
  5. Step 5: Solve for x
    x = 25,409,186,183.37/214,117.92
  6. Step 6: Final answer
    x = 118,669.12

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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.