Home / 281,917.74-423,086.78-113,439.50

Finding the Fourth Proportional to 281,917.74, 423,086.78 and 113,439.50

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Solution

The fourth proportional to 281,917.74, 423,086.78 and 113,439.50 is: 170,243.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,917.74 : 423,086.78 = 113,439.50 : x
  2. Step 2: Convert to fraction form
    281,917.74/423,086.78 = 113,439.50/x
  3. Step 3: Cross multiply
    281,917.74x = 423,086.78 × 113,439.50
  4. Step 4: Simplify right side
    281,917.74x = 47,994,752,779.81
  5. Step 5: Solve for x
    x = 47,994,752,779.81/281,917.74
  6. Step 6: Final answer
    x = 170,243.82

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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.