Home / 104,645.20-144,408.66-56,899.75

Finding the Fourth Proportional to 104,645.20, 144,408.66 and 56,899.75

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Solution

The fourth proportional to 104,645.20, 144,408.66 and 56,899.75 is: 78,520.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,645.20 : 144,408.66 = 56,899.75 : x
  2. Step 2: Convert to fraction form
    104,645.20/144,408.66 = 56,899.75/x
  3. Step 3: Cross multiply
    104,645.20x = 144,408.66 × 56,899.75
  4. Step 4: Simplify right side
    104,645.20x = 8,216,816,651.84
  5. Step 5: Solve for x
    x = 8,216,816,651.84/104,645.20
  6. Step 6: Final answer
    x = 78,520.72

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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.