Home / 135,503.48-203,381.28-68,993.37

Finding the Fourth Proportional to 135,503.48, 203,381.28 and 68,993.37

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Solution

The fourth proportional to 135,503.48, 203,381.28 and 68,993.37 is: 103,554.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,503.48 : 203,381.28 = 68,993.37 : x
  2. Step 2: Convert to fraction form
    135,503.48/203,381.28 = 68,993.37/x
  3. Step 3: Cross multiply
    135,503.48x = 203,381.28 × 68,993.37
  4. Step 4: Simplify right side
    135,503.48x = 14,031,959,902.11
  5. Step 5: Solve for x
    x = 14,031,959,902.11/135,503.48
  6. Step 6: Final answer
    x = 103,554.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.