Home / 128,104.53-192,274.34-64,968.57

Finding the Fourth Proportional to 128,104.53, 192,274.34 and 64,968.57

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Solution

The fourth proportional to 128,104.53, 192,274.34 and 64,968.57 is: 97,512.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,104.53 : 192,274.34 = 64,968.57 : x
  2. Step 2: Convert to fraction form
    128,104.53/192,274.34 = 64,968.57/x
  3. Step 3: Cross multiply
    128,104.53x = 192,274.34 × 64,968.57
  4. Step 4: Simplify right side
    128,104.53x = 12,491,788,917.49
  5. Step 5: Solve for x
    x = 12,491,788,917.49/128,104.53
  6. Step 6: Final answer
    x = 97,512.47

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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.