Home / 206,143.38-309,259.17-63,985.55

Finding the Fourth Proportional to 206,143.38, 309,259.17 and 63,985.55

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Solution

The fourth proportional to 206,143.38, 309,259.17 and 63,985.55 is: 95,992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,143.38 : 309,259.17 = 63,985.55 : x
  2. Step 2: Convert to fraction form
    206,143.38/309,259.17 = 63,985.55/x
  3. Step 3: Cross multiply
    206,143.38x = 309,259.17 × 63,985.55
  4. Step 4: Simplify right side
    206,143.38x = 19,788,116,538.70
  5. Step 5: Solve for x
    x = 19,788,116,538.70/206,143.38
  6. Step 6: Final answer
    x = 95,992.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.