Home / 104,702.42-144,542.85-80,775.38

Finding the Fourth Proportional to 104,702.42, 144,542.85 and 80,775.38

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Solution

The fourth proportional to 104,702.42, 144,542.85 and 80,775.38 is: 111,511.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,702.42 : 144,542.85 = 80,775.38 : x
  2. Step 2: Convert to fraction form
    104,702.42/144,542.85 = 80,775.38/x
  3. Step 3: Cross multiply
    104,702.42x = 144,542.85 × 80,775.38
  4. Step 4: Simplify right side
    104,702.42x = 11,675,503,635.03
  5. Step 5: Solve for x
    x = 11,675,503,635.03/104,702.42
  6. Step 6: Final answer
    x = 111,511.31

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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.