Home / 144,861.44-199,905-81,203.36

Finding the Fourth Proportional to 144,861.44, 199,905 and 81,203.36

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Solution

The fourth proportional to 144,861.44, 199,905 and 81,203.36 is: 112,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,861.44 : 199,905 = 81,203.36 : x
  2. Step 2: Convert to fraction form
    144,861.44/199,905 = 81,203.36/x
  3. Step 3: Cross multiply
    144,861.44x = 199,905 × 81,203.36
  4. Step 4: Simplify right side
    144,861.44x = 16,232,957,680.80
  5. Step 5: Solve for x
    x = 16,232,957,680.80/144,861.44
  6. Step 6: Final answer
    x = 112,058.51

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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.