Home / 281,077.12-387,896.34-160,198.89

Finding the Fourth Proportional to 281,077.12, 387,896.34 and 160,198.89

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Solution

The fourth proportional to 281,077.12, 387,896.34 and 160,198.89 is: 221,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,077.12 : 387,896.34 = 160,198.89 : x
  2. Step 2: Convert to fraction form
    281,077.12/387,896.34 = 160,198.89/x
  3. Step 3: Cross multiply
    281,077.12x = 387,896.34 × 160,198.89
  4. Step 4: Simplify right side
    281,077.12x = 62,140,563,103.06
  5. Step 5: Solve for x
    x = 62,140,563,103.06/281,077.12
  6. Step 6: Final answer
    x = 221,080.12

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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.