Home / 104,878.18-144,733.47-57,131.50

Finding the Fourth Proportional to 104,878.18, 144,733.47 and 57,131.50

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Solution

The fourth proportional to 104,878.18, 144,733.47 and 57,131.50 is: 78,842.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,878.18 : 144,733.47 = 57,131.50 : x
  2. Step 2: Convert to fraction form
    104,878.18/144,733.47 = 57,131.50/x
  3. Step 3: Cross multiply
    104,878.18x = 144,733.47 × 57,131.50
  4. Step 4: Simplify right side
    104,878.18x = 8,268,840,241.31
  5. Step 5: Solve for x
    x = 8,268,840,241.31/104,878.18
  6. Step 6: Final answer
    x = 78,842.33

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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.