Home / 258,059.06-387,133.98-117,831.86

Finding the Fourth Proportional to 258,059.06, 387,133.98 and 117,831.86

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Solution

The fourth proportional to 258,059.06, 387,133.98 and 117,831.86 is: 176,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,059.06 : 387,133.98 = 117,831.86 : x
  2. Step 2: Convert to fraction form
    258,059.06/387,133.98 = 117,831.86/x
  3. Step 3: Cross multiply
    258,059.06x = 387,133.98 × 117,831.86
  4. Step 4: Simplify right side
    258,059.06x = 45,616,716,932.60
  5. Step 5: Solve for x
    x = 45,616,716,932.60/258,059.06
  6. Step 6: Final answer
    x = 176,768.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.