Home / 152,676.77-228,781.62-81,609.53

Finding the Fourth Proportional to 152,676.77, 228,781.62 and 81,609.53

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Solution

The fourth proportional to 152,676.77, 228,781.62 and 81,609.53 is: 122,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,676.77 : 228,781.62 = 81,609.53 : x
  2. Step 2: Convert to fraction form
    152,676.77/228,781.62 = 81,609.53/x
  3. Step 3: Cross multiply
    152,676.77x = 228,781.62 × 81,609.53
  4. Step 4: Simplify right side
    152,676.77x = 18,670,760,072.79
  5. Step 5: Solve for x
    x = 18,670,760,072.79/152,676.77
  6. Step 6: Final answer
    x = 122,289.46

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1.5x scale

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.