Home / 189,425.75-261,441.39-112,949.76

Finding the Fourth Proportional to 189,425.75, 261,441.39 and 112,949.76

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Solution

The fourth proportional to 189,425.75, 261,441.39 and 112,949.76 is: 155,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,425.75 : 261,441.39 = 112,949.76 : x
  2. Step 2: Convert to fraction form
    189,425.75/261,441.39 = 112,949.76/x
  3. Step 3: Cross multiply
    189,425.75x = 261,441.39 × 112,949.76
  4. Step 4: Simplify right side
    189,425.75x = 29,529,742,254.57
  5. Step 5: Solve for x
    x = 29,529,742,254.57/189,425.75
  6. Step 6: Final answer
    x = 155,890.86

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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.