Home / 189,831.17-261,971.16-113,336.01

Finding the Fourth Proportional to 189,831.17, 261,971.16 and 113,336.01

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Solution

The fourth proportional to 189,831.17, 261,971.16 and 113,336.01 is: 156,406.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,831.17 : 261,971.16 = 113,336.01 : x
  2. Step 2: Convert to fraction form
    189,831.17/261,971.16 = 113,336.01/x
  3. Step 3: Cross multiply
    189,831.17x = 261,971.16 × 113,336.01
  4. Step 4: Simplify right side
    189,831.17x = 29,690,766,221.98
  5. Step 5: Solve for x
    x = 29,690,766,221.98/189,831.17
  6. Step 6: Final answer
    x = 156,406.17

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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.