Home / 152,677.02-228,781.99-81,609.78

Finding the Fourth Proportional to 152,677.02, 228,781.99 and 81,609.78

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Solution

The fourth proportional to 152,677.02, 228,781.99 and 81,609.78 is: 122,289.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,677.02 : 228,781.99 = 81,609.78 : x
  2. Step 2: Convert to fraction form
    152,677.02/228,781.99 = 81,609.78/x
  3. Step 3: Cross multiply
    152,677.02x = 228,781.99 × 81,609.78
  4. Step 4: Simplify right side
    152,677.02x = 18,670,847,973.87
  5. Step 5: Solve for x
    x = 18,670,847,973.87/152,677.02
  6. Step 6: Final answer
    x = 122,289.84

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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.