Home / 104,886.86-144,745.44-57,140.20

Finding the Fourth Proportional to 104,886.86, 144,745.44 and 57,140.20

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Solution

The fourth proportional to 104,886.86, 144,745.44 and 57,140.20 is: 78,854.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,886.86 : 144,745.44 = 57,140.20 : x
  2. Step 2: Convert to fraction form
    104,886.86/144,745.44 = 57,140.20/x
  3. Step 3: Cross multiply
    104,886.86x = 144,745.44 × 57,140.20
  4. Step 4: Simplify right side
    104,886.86x = 8,270,783,028.82
  5. Step 5: Solve for x
    x = 8,270,783,028.82/104,886.86
  6. Step 6: Final answer
    x = 78,854.33

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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.