Home / 281,020.12-387,817.86-160,179.64

Finding the Fourth Proportional to 281,020.12, 387,817.86 and 160,179.64

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Solution

The fourth proportional to 281,020.12, 387,817.86 and 160,179.64 is: 221,053.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,020.12 : 387,817.86 = 160,179.64 : x
  2. Step 2: Convert to fraction form
    281,020.12/387,817.86 = 160,179.64/x
  3. Step 3: Cross multiply
    281,020.12x = 387,817.86 × 160,179.64
  4. Step 4: Simplify right side
    281,020.12x = 62,120,525,200.37
  5. Step 5: Solve for x
    x = 62,120,525,200.37/281,020.12
  6. Step 6: Final answer
    x = 221,053.66

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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.