Home / 146,018.61-219,021.84-79,877.79

Finding the Fourth Proportional to 146,018.61, 219,021.84 and 79,877.79

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Solution

The fourth proportional to 146,018.61, 219,021.84 and 79,877.79 is: 119,813.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,018.61 : 219,021.84 = 79,877.79 : x
  2. Step 2: Convert to fraction form
    146,018.61/219,021.84 = 79,877.79/x
  3. Step 3: Cross multiply
    146,018.61x = 219,021.84 × 79,877.79
  4. Step 4: Simplify right side
    146,018.61x = 17,494,980,540.93
  5. Step 5: Solve for x
    x = 17,494,980,540.93/146,018.61
  6. Step 6: Final answer
    x = 119,813.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.