Home / 109,385.43-164,078.07-84,461.86

Finding the Fourth Proportional to 109,385.43, 164,078.07 and 84,461.86

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Solution

The fourth proportional to 109,385.43, 164,078.07 and 84,461.86 is: 126,692.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,385.43 : 164,078.07 = 84,461.86 : x
  2. Step 2: Convert to fraction form
    109,385.43/164,078.07 = 84,461.86/x
  3. Step 3: Cross multiply
    109,385.43x = 164,078.07 × 84,461.86
  4. Step 4: Simplify right side
    109,385.43x = 13,858,338,977.41
  5. Step 5: Solve for x
    x = 13,858,338,977.41/109,385.43
  6. Step 6: Final answer
    x = 126,692.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.