Home / 104,813.11-144,640.24-57,065.64

Finding the Fourth Proportional to 104,813.11, 144,640.24 and 57,065.64

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Solution

The fourth proportional to 104,813.11, 144,640.24 and 57,065.64 is: 78,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,813.11 : 144,640.24 = 57,065.64 : x
  2. Step 2: Convert to fraction form
    104,813.11/144,640.24 = 57,065.64/x
  3. Step 3: Cross multiply
    104,813.11x = 144,640.24 × 57,065.64
  4. Step 4: Simplify right side
    104,813.11x = 8,253,987,865.35
  5. Step 5: Solve for x
    x = 8,253,987,865.35/104,813.11
  6. Step 6: Final answer
    x = 78,749.57

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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.