Home / 214,086.40-321,129.60-109,110.40

Finding the Fourth Proportional to 214,086.40, 321,129.60 and 109,110.40

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Solution

The fourth proportional to 214,086.40, 321,129.60 and 109,110.40 is: 163,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,086.40 : 321,129.60 = 109,110.40 : x
  2. Step 2: Convert to fraction form
    214,086.40/321,129.60 = 109,110.40/x
  3. Step 3: Cross multiply
    214,086.40x = 321,129.60 × 109,110.40
  4. Step 4: Simplify right side
    214,086.40x = 35,038,579,107.84
  5. Step 5: Solve for x
    x = 35,038,579,107.84/214,086.40
  6. Step 6: Final answer
    x = 163,665.60

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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.