Home / 135,829.62-187,445.61-75,399.30

Finding the Fourth Proportional to 135,829.62, 187,445.61 and 75,399.30

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Solution

The fourth proportional to 135,829.62, 187,445.61 and 75,399.30 is: 104,051.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,829.62 : 187,445.61 = 75,399.30 : x
  2. Step 2: Convert to fraction form
    135,829.62/187,445.61 = 75,399.30/x
  3. Step 3: Cross multiply
    135,829.62x = 187,445.61 × 75,399.30
  4. Step 4: Simplify right side
    135,829.62x = 14,133,267,782.07
  5. Step 5: Solve for x
    x = 14,133,267,782.07/135,829.62
  6. Step 6: Final answer
    x = 104,051.44

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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.