Home / 158,741.21-219,076.32-87,133.37

Finding the Fourth Proportional to 158,741.21, 219,076.32 and 87,133.37

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Solution

The fourth proportional to 158,741.21, 219,076.32 and 87,133.37 is: 120,251.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,741.21 : 219,076.32 = 87,133.37 : x
  2. Step 2: Convert to fraction form
    158,741.21/219,076.32 = 87,133.37/x
  3. Step 3: Cross multiply
    158,741.21x = 219,076.32 × 87,133.37
  4. Step 4: Simplify right side
    158,741.21x = 19,088,856,953.42
  5. Step 5: Solve for x
    x = 19,088,856,953.42/158,741.21
  6. Step 6: Final answer
    x = 120,251.42

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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.