Home / 158,722.73-219,040.06-87,109.42

Finding the Fourth Proportional to 158,722.73, 219,040.06 and 87,109.42

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Solution

The fourth proportional to 158,722.73, 219,040.06 and 87,109.42 is: 120,212.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,722.73 : 219,040.06 = 87,109.42 : x
  2. Step 2: Convert to fraction form
    158,722.73/219,040.06 = 87,109.42/x
  3. Step 3: Cross multiply
    158,722.73x = 219,040.06 × 87,109.42
  4. Step 4: Simplify right side
    158,722.73x = 19,080,452,583.37
  5. Step 5: Solve for x
    x = 19,080,452,583.37/158,722.73
  6. Step 6: Final answer
    x = 120,212.48

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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.