Home / 189,439.05-261,425.34-104,555.50

Finding the Fourth Proportional to 189,439.05, 261,425.34 and 104,555.50

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Solution

The fourth proportional to 189,439.05, 261,425.34 and 104,555.50 is: 144,286.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,439.05 : 261,425.34 = 104,555.50 : x
  2. Step 2: Convert to fraction form
    189,439.05/261,425.34 = 104,555.50/x
  3. Step 3: Cross multiply
    189,439.05x = 261,425.34 × 104,555.50
  4. Step 4: Simplify right side
    189,439.05x = 27,333,457,136.37
  5. Step 5: Solve for x
    x = 27,333,457,136.37/189,439.05
  6. Step 6: Final answer
    x = 144,286.29

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1.5x scale

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.