Home / 214,022.07-321,054.35-79,121.50

Finding the Fourth Proportional to 214,022.07, 321,054.35 and 79,121.50

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Solution

The fourth proportional to 214,022.07, 321,054.35 and 79,121.50 is: 118,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,022.07 : 321,054.35 = 79,121.50 : x
  2. Step 2: Convert to fraction form
    214,022.07/321,054.35 = 79,121.50/x
  3. Step 3: Cross multiply
    214,022.07x = 321,054.35 × 79,121.50
  4. Step 4: Simplify right side
    214,022.07x = 25,402,300,555.28
  5. Step 5: Solve for x
    x = 25,402,300,555.28/214,022.07
  6. Step 6: Final answer
    x = 118,690.10

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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.