Home / 112,122.98-154,767.20-66,815.17

Finding the Fourth Proportional to 112,122.98, 154,767.20 and 66,815.17

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Solution

The fourth proportional to 112,122.98, 154,767.20 and 66,815.17 is: 92,227.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,122.98 : 154,767.20 = 66,815.17 : x
  2. Step 2: Convert to fraction form
    112,122.98/154,767.20 = 66,815.17/x
  3. Step 3: Cross multiply
    112,122.98x = 154,767.20 × 66,815.17
  4. Step 4: Simplify right side
    112,122.98x = 10,340,796,057.43
  5. Step 5: Solve for x
    x = 10,340,796,057.43/112,122.98
  6. Step 6: Final answer
    x = 92,227.27

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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.