Home / 112,157.39-154,697.31-108,450.43

Finding the Fourth Proportional to 112,157.39, 154,697.31 and 108,450.43

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Solution

The fourth proportional to 112,157.39, 154,697.31 and 108,450.43 is: 149,584.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,157.39 : 154,697.31 = 108,450.43 : x
  2. Step 2: Convert to fraction form
    112,157.39/154,697.31 = 108,450.43/x
  3. Step 3: Cross multiply
    112,157.39x = 154,697.31 × 108,450.43
  4. Step 4: Simplify right side
    112,157.39x = 16,776,989,402.60
  5. Step 5: Solve for x
    x = 16,776,989,402.60/112,157.39
  6. Step 6: Final answer
    x = 149,584.34

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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.