Home / 104,876.37-144,729.05-57,129.57

Finding the Fourth Proportional to 104,876.37, 144,729.05 and 57,129.57

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Solution

The fourth proportional to 104,876.37, 144,729.05 and 57,129.57 is: 78,838.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,876.37 : 144,729.05 = 57,129.57 : x
  2. Step 2: Convert to fraction form
    104,876.37/144,729.05 = 57,129.57/x
  3. Step 3: Cross multiply
    104,876.37x = 144,729.05 × 57,129.57
  4. Step 4: Simplify right side
    104,876.37x = 8,268,308,107.36
  5. Step 5: Solve for x
    x = 8,268,308,107.36/104,876.37
  6. Step 6: Final answer
    x = 78,838.62

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1.5x scale

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.