Home / 115,904.80-173,857.20-104,240.80

Finding the Fourth Proportional to 115,904.80, 173,857.20 and 104,240.80

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Solution

The fourth proportional to 115,904.80, 173,857.20 and 104,240.80 is: 156,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,904.80 : 173,857.20 = 104,240.80 : x
  2. Step 2: Convert to fraction form
    115,904.80/173,857.20 = 104,240.80/x
  3. Step 3: Cross multiply
    115,904.80x = 173,857.20 × 104,240.80
  4. Step 4: Simplify right side
    115,904.80x = 18,123,013,613.76
  5. Step 5: Solve for x
    x = 18,123,013,613.76/115,904.80
  6. Step 6: Final answer
    x = 156,361.20

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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.