Home / 281,917.81-423,086.88-113,439.56

Finding the Fourth Proportional to 281,917.81, 423,086.88 and 113,439.56

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Solution

The fourth proportional to 281,917.81, 423,086.88 and 113,439.56 is: 170,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,917.81 : 423,086.88 = 113,439.56 : x
  2. Step 2: Convert to fraction form
    281,917.81/423,086.88 = 113,439.56/x
  3. Step 3: Cross multiply
    281,917.81x = 423,086.88 × 113,439.56
  4. Step 4: Simplify right side
    281,917.81x = 47,994,788,941.78
  5. Step 5: Solve for x
    x = 47,994,788,941.78/281,917.81
  6. Step 6: Final answer
    x = 170,243.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.