Home / 102,822.40-154,003.20-53,516.80

Finding the Fourth Proportional to 102,822.40, 154,003.20 and 53,516.80

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Solution

The fourth proportional to 102,822.40, 154,003.20 and 53,516.80 is: 80,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,822.40 : 154,003.20 = 53,516.80 : x
  2. Step 2: Convert to fraction form
    102,822.40/154,003.20 = 53,516.80/x
  3. Step 3: Cross multiply
    102,822.40x = 154,003.20 × 53,516.80
  4. Step 4: Simplify right side
    102,822.40x = 8,241,758,453.76
  5. Step 5: Solve for x
    x = 8,241,758,453.76/102,822.40
  6. Step 6: Final answer
    x = 80,155.28

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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.