Home / 196,152.28-270,620.53-128,208.49

Finding the Fourth Proportional to 196,152.28, 270,620.53 and 128,208.49

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Solution

The fourth proportional to 196,152.28, 270,620.53 and 128,208.49 is: 176,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,152.28 : 270,620.53 = 128,208.49 : x
  2. Step 2: Convert to fraction form
    196,152.28/270,620.53 = 128,208.49/x
  3. Step 3: Cross multiply
    196,152.28x = 270,620.53 × 128,208.49
  4. Step 4: Simplify right side
    196,152.28x = 34,695,848,517.23
  5. Step 5: Solve for x
    x = 34,695,848,517.23/196,152.28
  6. Step 6: Final answer
    x = 176,882.21

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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.