Home / 196,520.74-271,121.62-120,938.02

Finding the Fourth Proportional to 196,520.74, 271,121.62 and 120,938.02

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Solution

The fourth proportional to 196,520.74, 271,121.62 and 120,938.02 is: 166,847.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,520.74 : 271,121.62 = 120,938.02 : x
  2. Step 2: Convert to fraction form
    196,520.74/271,121.62 = 120,938.02/x
  3. Step 3: Cross multiply
    196,520.74x = 271,121.62 × 120,938.02
  4. Step 4: Simplify right side
    196,520.74x = 32,788,911,901.99
  5. Step 5: Solve for x
    x = 32,788,911,901.99/196,520.74
  6. Step 6: Final answer
    x = 166,847.08

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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.