Home / 209,831.28-289,558.10-119,186.96

Finding the Fourth Proportional to 209,831.28, 289,558.10 and 119,186.96

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Solution

The fourth proportional to 209,831.28, 289,558.10 and 119,186.96 is: 164,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,831.28 : 289,558.10 = 119,186.96 : x
  2. Step 2: Convert to fraction form
    209,831.28/289,558.10 = 119,186.96/x
  3. Step 3: Cross multiply
    209,831.28x = 289,558.10 × 119,186.96
  4. Step 4: Simplify right side
    209,831.28x = 34,511,549,682.38
  5. Step 5: Solve for x
    x = 34,511,549,682.38/209,831.28
  6. Step 6: Final answer
    x = 164,472.85

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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.