Home / 214,142.40-321,032.97-135,082.35

Finding the Fourth Proportional to 214,142.40, 321,032.97 and 135,082.35

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Solution

The fourth proportional to 214,142.40, 321,032.97 and 135,082.35 is: 202,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,142.40 : 321,032.97 = 135,082.35 : x
  2. Step 2: Convert to fraction form
    214,142.40/321,032.97 = 135,082.35/x
  3. Step 3: Cross multiply
    214,142.40x = 321,032.97 × 135,082.35
  4. Step 4: Simplify right side
    214,142.40x = 43,365,888,015.08
  5. Step 5: Solve for x
    x = 43,365,888,015.08/214,142.40
  6. Step 6: Final answer
    x = 202,509.58

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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.