Home / 221,175.20-305,191.04-130,534.96

Finding the Fourth Proportional to 221,175.20, 305,191.04 and 130,534.96

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Solution

The fourth proportional to 221,175.20, 305,191.04 and 130,534.96 is: 180,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,175.20 : 305,191.04 = 130,534.96 : x
  2. Step 2: Convert to fraction form
    221,175.20/305,191.04 = 130,534.96/x
  3. Step 3: Cross multiply
    221,175.20x = 305,191.04 × 130,534.96
  4. Step 4: Simplify right side
    221,175.20x = 39,838,100,198.76
  5. Step 5: Solve for x
    x = 39,838,100,198.76/221,175.20
  6. Step 6: Final answer
    x = 180,120.10

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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.