Home / 135,622.85-187,152.03-75,189.96

Finding the Fourth Proportional to 135,622.85, 187,152.03 and 75,189.96

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Solution

The fourth proportional to 135,622.85, 187,152.03 and 75,189.96 is: 103,757.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,622.85 : 187,152.03 = 75,189.96 : x
  2. Step 2: Convert to fraction form
    135,622.85/187,152.03 = 75,189.96/x
  3. Step 3: Cross multiply
    135,622.85x = 187,152.03 × 75,189.96
  4. Step 4: Simplify right side
    135,622.85x = 14,071,953,649.62
  5. Step 5: Solve for x
    x = 14,071,953,649.62/135,622.85
  6. Step 6: Final answer
    x = 103,757.99

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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.