Home / 157,450.72-236,189.04-68,648.80

Finding the Fourth Proportional to 157,450.72, 236,189.04 and 68,648.80

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Solution

The fourth proportional to 157,450.72, 236,189.04 and 68,648.80 is: 102,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,450.72 : 236,189.04 = 68,648.80 : x
  2. Step 2: Convert to fraction form
    157,450.72/236,189.04 = 68,648.80/x
  3. Step 3: Cross multiply
    157,450.72x = 236,189.04 × 68,648.80
  4. Step 4: Simplify right side
    157,450.72x = 16,214,094,169.15
  5. Step 5: Solve for x
    x = 16,214,094,169.15/157,450.72
  6. Step 6: Final answer
    x = 102,978.85

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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.