Home / 221,533.49-305,675.89-124,722.29

Finding the Fourth Proportional to 221,533.49, 305,675.89 and 124,722.29

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Solution

The fourth proportional to 221,533.49, 305,675.89 and 124,722.29 is: 172,094.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,533.49 : 305,675.89 = 124,722.29 : x
  2. Step 2: Convert to fraction form
    221,533.49/305,675.89 = 124,722.29/x
  3. Step 3: Cross multiply
    221,533.49x = 305,675.89 × 124,722.29
  4. Step 4: Simplify right side
    221,533.49x = 38,124,597,450.97
  5. Step 5: Solve for x
    x = 38,124,597,450.97/221,533.49
  6. Step 6: Final answer
    x = 172,094.06

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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.