Home / 104,905.11-144,770.67-57,158.45

Finding the Fourth Proportional to 104,905.11, 144,770.67 and 57,158.45

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Solution

The fourth proportional to 104,905.11, 144,770.67 and 57,158.45 is: 78,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,905.11 : 144,770.67 = 57,158.45 : x
  2. Step 2: Convert to fraction form
    104,905.11/144,770.67 = 57,158.45/x
  3. Step 3: Cross multiply
    104,905.11x = 144,770.67 × 57,158.45
  4. Step 4: Simplify right side
    104,905.11x = 8,274,866,378.81
  5. Step 5: Solve for x
    x = 8,274,866,378.81/104,905.11
  6. Step 6: Final answer
    x = 78,879.54

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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.