Home / 196,620.96-271,126.80-129,436.32

Finding the Fourth Proportional to 196,620.96, 271,126.80 and 129,436.32

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Solution

The fourth proportional to 196,620.96, 271,126.80 and 129,436.32 is: 178,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,620.96 : 271,126.80 = 129,436.32 : x
  2. Step 2: Convert to fraction form
    196,620.96/271,126.80 = 129,436.32/x
  3. Step 3: Cross multiply
    196,620.96x = 271,126.80 × 129,436.32
  4. Step 4: Simplify right side
    196,620.96x = 35,093,655,245.38
  5. Step 5: Solve for x
    x = 35,093,655,245.38/196,620.96
  6. Step 6: Final answer
    x = 178,483.80

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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.