Home / 236,938.08-355,354.64-68,421.72

Finding the Fourth Proportional to 236,938.08, 355,354.64 and 68,421.72

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Solution

The fourth proportional to 236,938.08, 355,354.64 and 68,421.72 is: 102,617.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,938.08 : 355,354.64 = 68,421.72 : x
  2. Step 2: Convert to fraction form
    236,938.08/355,354.64 = 68,421.72/x
  3. Step 3: Cross multiply
    236,938.08x = 355,354.64 × 68,421.72
  4. Step 4: Simplify right side
    236,938.08x = 24,313,975,678.78
  5. Step 5: Solve for x
    x = 24,313,975,678.78/236,938.08
  6. Step 6: Final answer
    x = 102,617.43

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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.