Home / 81,966.20-122,949.30-73,153.40

Finding the Fourth Proportional to 81,966.20, 122,949.30 and 73,153.40

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Solution

The fourth proportional to 81,966.20, 122,949.30 and 73,153.40 is: 109,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,966.20 : 122,949.30 = 73,153.40 : x
  2. Step 2: Convert to fraction form
    81,966.20/122,949.30 = 73,153.40/x
  3. Step 3: Cross multiply
    81,966.20x = 122,949.30 × 73,153.40
  4. Step 4: Simplify right side
    81,966.20x = 8,994,159,322.62
  5. Step 5: Solve for x
    x = 8,994,159,322.62/81,966.20
  6. Step 6: Final answer
    x = 109,730.10

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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.