Home / 221,087.84-305,014.58-136,057.28

Finding the Fourth Proportional to 221,087.84, 305,014.58 and 136,057.28

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Solution

The fourth proportional to 221,087.84, 305,014.58 and 136,057.28 is: 187,705.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,087.84 : 305,014.58 = 136,057.28 : x
  2. Step 2: Convert to fraction form
    221,087.84/305,014.58 = 136,057.28/x
  3. Step 3: Cross multiply
    221,087.84x = 305,014.58 × 136,057.28
  4. Step 4: Simplify right side
    221,087.84x = 41,499,454,115.14
  5. Step 5: Solve for x
    x = 41,499,454,115.14/221,087.84
  6. Step 6: Final answer
    x = 187,705.73

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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.