Home / 151,634.76-209,188.32-87,935.66

Finding the Fourth Proportional to 151,634.76, 209,188.32 and 87,935.66

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Solution

The fourth proportional to 151,634.76, 209,188.32 and 87,935.66 is: 121,311.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,634.76 : 209,188.32 = 87,935.66 : x
  2. Step 2: Convert to fraction form
    151,634.76/209,188.32 = 87,935.66/x
  3. Step 3: Cross multiply
    151,634.76x = 209,188.32 × 87,935.66
  4. Step 4: Simplify right side
    151,634.76x = 18,395,112,983.49
  5. Step 5: Solve for x
    x = 18,395,112,983.49/151,634.76
  6. Step 6: Final answer
    x = 121,311.98

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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.