Home / 189,831.32-261,923.70-113,335.52

Finding the Fourth Proportional to 189,831.32, 261,923.70 and 113,335.52

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Solution

The fourth proportional to 189,831.32, 261,923.70 and 113,335.52 is: 156,377.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,831.32 : 261,923.70 = 113,335.52 : x
  2. Step 2: Convert to fraction form
    189,831.32/261,923.70 = 113,335.52/x
  3. Step 3: Cross multiply
    189,831.32x = 261,923.70 × 113,335.52
  4. Step 4: Simplify right side
    189,831.32x = 29,685,258,739.82
  5. Step 5: Solve for x
    x = 29,685,258,739.82/189,831.32
  6. Step 6: Final answer
    x = 156,377.03

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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.