Home / 198,127.20-273,362.64-117,487.68

Finding the Fourth Proportional to 198,127.20, 273,362.64 and 117,487.68

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Solution

The fourth proportional to 198,127.20, 273,362.64 and 117,487.68 is: 162,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,127.20 : 273,362.64 = 117,487.68 : x
  2. Step 2: Convert to fraction form
    198,127.20/273,362.64 = 117,487.68/x
  3. Step 3: Cross multiply
    198,127.20x = 273,362.64 × 117,487.68
  4. Step 4: Simplify right side
    198,127.20x = 32,116,742,372.28
  5. Step 5: Solve for x
    x = 32,116,742,372.28/198,127.20
  6. Step 6: Final answer
    x = 162,101.63

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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.