Home / 109,966.20-164,949.30-74,974.20

Finding the Fourth Proportional to 109,966.20, 164,949.30 and 74,974.20

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Solution

The fourth proportional to 109,966.20, 164,949.30 and 74,974.20 is: 112,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,966.20 : 164,949.30 = 74,974.20 : x
  2. Step 2: Convert to fraction form
    109,966.20/164,949.30 = 74,974.20/x
  3. Step 3: Cross multiply
    109,966.20x = 164,949.30 × 74,974.20
  4. Step 4: Simplify right side
    109,966.20x = 12,366,941,808.06
  5. Step 5: Solve for x
    x = 12,366,941,808.06/109,966.20
  6. Step 6: Final answer
    x = 112,461.30

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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.