Home / 189,153.72-261,033.90-104,273.82

Finding the Fourth Proportional to 189,153.72, 261,033.90 and 104,273.82

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Solution

The fourth proportional to 189,153.72, 261,033.90 and 104,273.82 is: 143,898.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,153.72 : 261,033.90 = 104,273.82 : x
  2. Step 2: Convert to fraction form
    189,153.72/261,033.90 = 104,273.82/x
  3. Step 3: Cross multiply
    189,153.72x = 261,033.90 × 104,273.82
  4. Step 4: Simplify right side
    189,153.72x = 27,219,001,902.50
  5. Step 5: Solve for x
    x = 27,219,001,902.50/189,153.72
  6. Step 6: Final answer
    x = 143,898.85

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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.