Home / 120,579.96-180,895.86-40,625.88

Finding the Fourth Proportional to 120,579.96, 180,895.86 and 40,625.88

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Solution

The fourth proportional to 120,579.96, 180,895.86 and 40,625.88 is: 60,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,579.96 : 180,895.86 = 40,625.88 : x
  2. Step 2: Convert to fraction form
    120,579.96/180,895.86 = 40,625.88/x
  3. Step 3: Cross multiply
    120,579.96x = 180,895.86 × 40,625.88
  4. Step 4: Simplify right side
    120,579.96x = 7,349,053,500.86
  5. Step 5: Solve for x
    x = 7,349,053,500.86/120,579.96
  6. Step 6: Final answer
    x = 60,947.55

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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.