Home / 137,022.36-189,121.35-83,296

Finding the Fourth Proportional to 137,022.36, 189,121.35 and 83,296

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Solution

The fourth proportional to 137,022.36, 189,121.35 and 83,296 is: 114,967.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,022.36 : 189,121.35 = 83,296 : x
  2. Step 2: Convert to fraction form
    137,022.36/189,121.35 = 83,296/x
  3. Step 3: Cross multiply
    137,022.36x = 189,121.35 × 83,296
  4. Step 4: Simplify right side
    137,022.36x = 15,753,051,969.60
  5. Step 5: Solve for x
    x = 15,753,051,969.60/137,022.36
  6. Step 6: Final answer
    x = 114,967.02

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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.