Home / 104,919.48-144,790.56-57,172.86

Finding the Fourth Proportional to 104,919.48, 144,790.56 and 57,172.86

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Solution

The fourth proportional to 104,919.48, 144,790.56 and 57,172.86 is: 78,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,919.48 : 144,790.56 = 57,172.86 : x
  2. Step 2: Convert to fraction form
    104,919.48/144,790.56 = 57,172.86/x
  3. Step 3: Cross multiply
    104,919.48x = 144,790.56 × 57,172.86
  4. Step 4: Simplify right side
    104,919.48x = 8,278,090,416.20
  5. Step 5: Solve for x
    x = 8,278,090,416.20/104,919.48
  6. Step 6: Final answer
    x = 78,899.46

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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.