Home / 148,910.88-205,497.68-81,847.20

Finding the Fourth Proportional to 148,910.88, 205,497.68 and 81,847.20

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Solution

The fourth proportional to 148,910.88, 205,497.68 and 81,847.20 is: 112,949.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,910.88 : 205,497.68 = 81,847.20 : x
  2. Step 2: Convert to fraction form
    148,910.88/205,497.68 = 81,847.20/x
  3. Step 3: Cross multiply
    148,910.88x = 205,497.68 × 81,847.20
  4. Step 4: Simplify right side
    148,910.88x = 16,819,409,714.50
  5. Step 5: Solve for x
    x = 16,819,409,714.50/148,910.88
  6. Step 6: Final answer
    x = 112,949.50

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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.