Home / 236,938.20-355,354.83-68,421.84

Finding the Fourth Proportional to 236,938.20, 355,354.83 and 68,421.84

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Solution

The fourth proportional to 236,938.20, 355,354.83 and 68,421.84 is: 102,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,938.20 : 355,354.83 = 68,421.84 : x
  2. Step 2: Convert to fraction form
    236,938.20/355,354.83 = 68,421.84/x
  3. Step 3: Cross multiply
    236,938.20x = 355,354.83 × 68,421.84
  4. Step 4: Simplify right side
    236,938.20x = 24,314,031,321.49
  5. Step 5: Solve for x
    x = 24,314,031,321.49/236,938.20
  6. Step 6: Final answer
    x = 102,617.61

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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.