Home / 101,790.80-140,455.96-58,180.20

Finding the Fourth Proportional to 101,790.80, 140,455.96 and 58,180.20

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Solution

The fourth proportional to 101,790.80, 140,455.96 and 58,180.20 is: 80,279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,790.80 : 140,455.96 = 58,180.20 : x
  2. Step 2: Convert to fraction form
    101,790.80/140,455.96 = 58,180.20/x
  3. Step 3: Cross multiply
    101,790.80x = 140,455.96 × 58,180.20
  4. Step 4: Simplify right side
    101,790.80x = 8,171,755,843.99
  5. Step 5: Solve for x
    x = 8,171,755,843.99/101,790.80
  6. Step 6: Final answer
    x = 80,279.91

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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.