Home / 214,065.15-321,162.51-80,986.20

Finding the Fourth Proportional to 214,065.15, 321,162.51 and 80,986.20

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Solution

The fourth proportional to 214,065.15, 321,162.51 and 80,986.20 is: 121,503.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,065.15 : 321,162.51 = 80,986.20 : x
  2. Step 2: Convert to fraction form
    214,065.15/321,162.51 = 80,986.20/x
  3. Step 3: Cross multiply
    214,065.15x = 321,162.51 × 80,986.20
  4. Step 4: Simplify right side
    214,065.15x = 26,009,731,267.36
  5. Step 5: Solve for x
    x = 26,009,731,267.36/214,065.15
  6. Step 6: Final answer
    x = 121,503.81

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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.