Home / 151,933.20-228,045.60-77,137.80

Finding the Fourth Proportional to 151,933.20, 228,045.60 and 77,137.80

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Solution

The fourth proportional to 151,933.20, 228,045.60 and 77,137.80 is: 115,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,933.20 : 228,045.60 = 77,137.80 : x
  2. Step 2: Convert to fraction form
    151,933.20/228,045.60 = 77,137.80/x
  3. Step 3: Cross multiply
    151,933.20x = 228,045.60 × 77,137.80
  4. Step 4: Simplify right side
    151,933.20x = 17,590,935,883.68
  5. Step 5: Solve for x
    x = 17,590,935,883.68/151,933.20
  6. Step 6: Final answer
    x = 115,780.72

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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.