Home / 81,788.30-122,682.45-73,234.70

Finding the Fourth Proportional to 81,788.30, 122,682.45 and 73,234.70

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Solution

The fourth proportional to 81,788.30, 122,682.45 and 73,234.70 is: 109,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,788.30 : 122,682.45 = 73,234.70 : x
  2. Step 2: Convert to fraction form
    81,788.30/122,682.45 = 73,234.70/x
  3. Step 3: Cross multiply
    81,788.30x = 122,682.45 × 73,234.70
  4. Step 4: Simplify right side
    81,788.30x = 8,984,612,421.02
  5. Step 5: Solve for x
    x = 8,984,612,421.02/81,788.30
  6. Step 6: Final answer
    x = 109,852.05

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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.