Home / 158,868.06-219,240.45-87,247.86

Finding the Fourth Proportional to 158,868.06, 219,240.45 and 87,247.86

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Solution

The fourth proportional to 158,868.06, 219,240.45 and 87,247.86 is: 120,403.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,868.06 : 219,240.45 = 87,247.86 : x
  2. Step 2: Convert to fraction form
    158,868.06/219,240.45 = 87,247.86/x
  3. Step 3: Cross multiply
    158,868.06x = 219,240.45 × 87,247.86
  4. Step 4: Simplify right side
    158,868.06x = 19,128,260,087.94
  5. Step 5: Solve for x
    x = 19,128,260,087.94/158,868.06
  6. Step 6: Final answer
    x = 120,403.43

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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.