Home / 128,359.31-192,551.82-44,108.36

Finding the Fourth Proportional to 128,359.31, 192,551.82 and 44,108.36

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Solution

The fourth proportional to 128,359.31, 192,551.82 and 44,108.36 is: 66,166.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,359.31 : 192,551.82 = 44,108.36 : x
  2. Step 2: Convert to fraction form
    128,359.31/192,551.82 = 44,108.36/x
  3. Step 3: Cross multiply
    128,359.31x = 192,551.82 × 44,108.36
  4. Step 4: Simplify right side
    128,359.31x = 8,493,144,995.22
  5. Step 5: Solve for x
    x = 8,493,144,995.22/128,359.31
  6. Step 6: Final answer
    x = 66,166.96

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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.