Home / 189,920.93-262,119.31-118,324.01

Finding the Fourth Proportional to 189,920.93, 262,119.31 and 118,324.01

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Solution

The fourth proportional to 189,920.93, 262,119.31 and 118,324.01 is: 163,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,920.93 : 262,119.31 = 118,324.01 : x
  2. Step 2: Convert to fraction form
    189,920.93/262,119.31 = 118,324.01/x
  3. Step 3: Cross multiply
    189,920.93x = 262,119.31 × 118,324.01
  4. Step 4: Simplify right side
    189,920.93x = 31,015,008,217.12
  5. Step 5: Solve for x
    x = 31,015,008,217.12/189,920.93
  6. Step 6: Final answer
    x = 163,304.85

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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.