Home / 108,375.36-149,529.18-74,394.24

Finding the Fourth Proportional to 108,375.36, 149,529.18 and 74,394.24

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Solution

The fourth proportional to 108,375.36, 149,529.18 and 74,394.24 is: 102,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,375.36 : 149,529.18 = 74,394.24 : x
  2. Step 2: Convert to fraction form
    108,375.36/149,529.18 = 74,394.24/x
  3. Step 3: Cross multiply
    108,375.36x = 149,529.18 × 74,394.24
  4. Step 4: Simplify right side
    108,375.36x = 11,124,109,703.92
  5. Step 5: Solve for x
    x = 11,124,109,703.92/108,375.36
  6. Step 6: Final answer
    x = 102,644.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.