Home / 157,939.08-236,821.86-77,800.72

Finding the Fourth Proportional to 157,939.08, 236,821.86 and 77,800.72

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Solution

The fourth proportional to 157,939.08, 236,821.86 and 77,800.72 is: 116,658.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,939.08 : 236,821.86 = 77,800.72 : x
  2. Step 2: Convert to fraction form
    157,939.08/236,821.86 = 77,800.72/x
  3. Step 3: Cross multiply
    157,939.08x = 236,821.86 × 77,800.72
  4. Step 4: Simplify right side
    157,939.08x = 18,424,910,183.64
  5. Step 5: Solve for x
    x = 18,424,910,183.64/157,939.08
  6. Step 6: Final answer
    x = 116,658.34

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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.