Home / 128,799.08-193,254.24-69,676.38

Finding the Fourth Proportional to 128,799.08, 193,254.24 and 69,676.38

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Solution

The fourth proportional to 128,799.08, 193,254.24 and 69,676.38 is: 104,544.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,799.08 : 193,254.24 = 69,676.38 : x
  2. Step 2: Convert to fraction form
    128,799.08/193,254.24 = 69,676.38/x
  3. Step 3: Cross multiply
    128,799.08x = 193,254.24 × 69,676.38
  4. Step 4: Simplify right side
    128,799.08x = 13,465,255,862.85
  5. Step 5: Solve for x
    x = 13,465,255,862.85/128,799.08
  6. Step 6: Final answer
    x = 104,544.66

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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.