Home / 152,720.96-228,997.35-81,726.84

Finding the Fourth Proportional to 152,720.96, 228,997.35 and 81,726.84

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Solution

The fourth proportional to 152,720.96, 228,997.35 and 81,726.84 is: 122,545.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,720.96 : 228,997.35 = 81,726.84 : x
  2. Step 2: Convert to fraction form
    152,720.96/228,997.35 = 81,726.84/x
  3. Step 3: Cross multiply
    152,720.96x = 228,997.35 × 81,726.84
  4. Step 4: Simplify right side
    152,720.96x = 18,715,229,783.87
  5. Step 5: Solve for x
    x = 18,715,229,783.87/152,720.96
  6. Step 6: Final answer
    x = 122,545.26

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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.