Home / 189,505.76-261,516.36-104,621

Finding the Fourth Proportional to 189,505.76, 261,516.36 and 104,621

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Solution

The fourth proportional to 189,505.76, 261,516.36 and 104,621 is: 144,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,505.76 : 261,516.36 = 104,621 : x
  2. Step 2: Convert to fraction form
    189,505.76/261,516.36 = 104,621/x
  3. Step 3: Cross multiply
    189,505.76x = 261,516.36 × 104,621
  4. Step 4: Simplify right side
    189,505.76x = 27,360,103,099.56
  5. Step 5: Solve for x
    x = 27,360,103,099.56/189,505.76
  6. Step 6: Final answer
    x = 144,376.10

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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.