Home / 196,643.06-271,388.23-120,206.90

Finding the Fourth Proportional to 196,643.06, 271,388.23 and 120,206.90

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Solution

The fourth proportional to 196,643.06, 271,388.23 and 120,206.90 is: 165,898.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,643.06 : 271,388.23 = 120,206.90 : x
  2. Step 2: Convert to fraction form
    196,643.06/271,388.23 = 120,206.90/x
  3. Step 3: Cross multiply
    196,643.06x = 271,388.23 × 120,206.90
  4. Step 4: Simplify right side
    196,643.06x = 32,622,737,223.75
  5. Step 5: Solve for x
    x = 32,622,737,223.75/196,643.06
  6. Step 6: Final answer
    x = 165,898.24

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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.