Home / 104,884.56-144,741.42-57,139.20

Finding the Fourth Proportional to 104,884.56, 144,741.42 and 57,139.20

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Solution

The fourth proportional to 104,884.56, 144,741.42 and 57,139.20 is: 78,852.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,884.56 : 144,741.42 = 57,139.20 : x
  2. Step 2: Convert to fraction form
    104,884.56/144,741.42 = 57,139.20/x
  3. Step 3: Cross multiply
    104,884.56x = 144,741.42 × 57,139.20
  4. Step 4: Simplify right side
    104,884.56x = 8,270,408,945.66
  5. Step 5: Solve for x
    x = 8,270,408,945.66/104,884.56
  6. Step 6: Final answer
    x = 78,852.49

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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.