Home / 135,865.04-187,495.96-75,439.56

Finding the Fourth Proportional to 135,865.04, 187,495.96 and 75,439.56

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Solution

The fourth proportional to 135,865.04, 187,495.96 and 75,439.56 is: 104,107.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,865.04 : 187,495.96 = 75,439.56 : x
  2. Step 2: Convert to fraction form
    135,865.04/187,495.96 = 75,439.56/x
  3. Step 3: Cross multiply
    135,865.04x = 187,495.96 × 75,439.56
  4. Step 4: Simplify right side
    135,865.04x = 14,144,612,724.18
  5. Step 5: Solve for x
    x = 14,144,612,724.18/135,865.04
  6. Step 6: Final answer
    x = 104,107.82

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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.