Home / 196,441.84-271,018.66-128,497.60

Finding the Fourth Proportional to 196,441.84, 271,018.66 and 128,497.60

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Solution

The fourth proportional to 196,441.84, 271,018.66 and 128,497.60 is: 177,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,441.84 : 271,018.66 = 128,497.60 : x
  2. Step 2: Convert to fraction form
    196,441.84/271,018.66 = 128,497.60/x
  3. Step 3: Cross multiply
    196,441.84x = 271,018.66 × 128,497.60
  4. Step 4: Simplify right side
    196,441.84x = 34,825,247,365.22
  5. Step 5: Solve for x
    x = 34,825,247,365.22/196,441.84
  6. Step 6: Final answer
    x = 177,280.19

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1.5x scale

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.