Home / 104,720.69-144,512.96-56,972.94

Finding the Fourth Proportional to 104,720.69, 144,512.96 and 56,972.94

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Solution

The fourth proportional to 104,720.69, 144,512.96 and 56,972.94 is: 78,621.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,720.69 : 144,512.96 = 56,972.94 : x
  2. Step 2: Convert to fraction form
    104,720.69/144,512.96 = 56,972.94/x
  3. Step 3: Cross multiply
    104,720.69x = 144,512.96 × 56,972.94
  4. Step 4: Simplify right side
    104,720.69x = 8,233,327,914.44
  5. Step 5: Solve for x
    x = 8,233,327,914.44/104,720.69
  6. Step 6: Final answer
    x = 78,621.79

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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.