Home / 196,709.53-271,557.19-128,830.52

Finding the Fourth Proportional to 196,709.53, 271,557.19 and 128,830.52

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Solution

The fourth proportional to 196,709.53, 271,557.19 and 128,830.52 is: 177,850.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,709.53 : 271,557.19 = 128,830.52 : x
  2. Step 2: Convert to fraction form
    196,709.53/271,557.19 = 128,830.52/x
  3. Step 3: Cross multiply
    196,709.53x = 271,557.19 × 128,830.52
  4. Step 4: Simplify right side
    196,709.53x = 34,984,853,309.86
  5. Step 5: Solve for x
    x = 34,984,853,309.86/196,709.53
  6. Step 6: Final answer
    x = 177,850.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.