Home / 152,061.21-228,137.72-80,971.56

Finding the Fourth Proportional to 152,061.21, 228,137.72 and 80,971.56

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Solution

The fourth proportional to 152,061.21, 228,137.72 and 80,971.56 is: 121,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,061.21 : 228,137.72 = 80,971.56 : x
  2. Step 2: Convert to fraction form
    152,061.21/228,137.72 = 80,971.56/x
  3. Step 3: Cross multiply
    152,061.21x = 228,137.72 × 80,971.56
  4. Step 4: Simplify right side
    152,061.21x = 18,472,666,678.39
  5. Step 5: Solve for x
    x = 18,472,666,678.39/152,061.21
  6. Step 6: Final answer
    x = 121,481.78

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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.