Home / 158,828.48-219,183.62-86,231.45

Finding the Fourth Proportional to 158,828.48, 219,183.62 and 86,231.45

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Solution

The fourth proportional to 158,828.48, 219,183.62 and 86,231.45 is: 118,999.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,828.48 : 219,183.62 = 86,231.45 : x
  2. Step 2: Convert to fraction form
    158,828.48/219,183.62 = 86,231.45/x
  3. Step 3: Cross multiply
    158,828.48x = 219,183.62 × 86,231.45
  4. Step 4: Simplify right side
    158,828.48x = 18,900,521,970.70
  5. Step 5: Solve for x
    x = 18,900,521,970.70/158,828.48
  6. Step 6: Final answer
    x = 118,999.58

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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.