Home / 199,517.84-299,018.04-81,051.60

Finding the Fourth Proportional to 199,517.84, 299,018.04 and 81,051.60

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Solution

The fourth proportional to 199,517.84, 299,018.04 and 81,051.60 is: 121,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,517.84 : 299,018.04 = 81,051.60 : x
  2. Step 2: Convert to fraction form
    199,517.84/299,018.04 = 81,051.60/x
  3. Step 3: Cross multiply
    199,517.84x = 299,018.04 × 81,051.60
  4. Step 4: Simplify right side
    199,517.84x = 24,235,890,570.86
  5. Step 5: Solve for x
    x = 24,235,890,570.86/199,517.84
  6. Step 6: Final answer
    x = 121,472.30

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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.