Home / 198,905.81-274,467.53-117,228.74

Finding the Fourth Proportional to 198,905.81, 274,467.53 and 117,228.74

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Solution

The fourth proportional to 198,905.81, 274,467.53 and 117,228.74 is: 161,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,905.81 : 274,467.53 = 117,228.74 : x
  2. Step 2: Convert to fraction form
    198,905.81/274,467.53 = 117,228.74/x
  3. Step 3: Cross multiply
    198,905.81x = 274,467.53 × 117,228.74
  4. Step 4: Simplify right side
    198,905.81x = 32,175,480,754.33
  5. Step 5: Solve for x
    x = 32,175,480,754.33/198,905.81
  6. Step 6: Final answer
    x = 161,762.40

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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.