Home / 214,131.60-321,088.05-79,188.84

Finding the Fourth Proportional to 214,131.60, 321,088.05 and 79,188.84

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Solution

The fourth proportional to 214,131.60, 321,088.05 and 79,188.84 is: 118,742.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,131.60 : 321,088.05 = 79,188.84 : x
  2. Step 2: Convert to fraction form
    214,131.60/321,088.05 = 79,188.84/x
  3. Step 3: Cross multiply
    214,131.60x = 321,088.05 × 79,188.84
  4. Step 4: Simplify right side
    214,131.60x = 25,426,590,217.36
  5. Step 5: Solve for x
    x = 25,426,590,217.36/214,131.60
  6. Step 6: Final answer
    x = 118,742.82

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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.