Home / 189,769.73-261,898.90-104,903.20

Finding the Fourth Proportional to 189,769.73, 261,898.90 and 104,903.20

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Solution

The fourth proportional to 189,769.73, 261,898.90 and 104,903.20 is: 144,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,769.73 : 261,898.90 = 104,903.20 : x
  2. Step 2: Convert to fraction form
    189,769.73/261,898.90 = 104,903.20/x
  3. Step 3: Cross multiply
    189,769.73x = 261,898.90 × 104,903.20
  4. Step 4: Simplify right side
    189,769.73x = 27,474,031,376.99
  5. Step 5: Solve for x
    x = 27,474,031,376.99/189,769.73
  6. Step 6: Final answer
    x = 144,775.63

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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.