Home / 112,158.39-154,698.69-108,451.43

Finding the Fourth Proportional to 112,158.39, 154,698.69 and 108,451.43

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Solution

The fourth proportional to 112,158.39, 154,698.69 and 108,451.43 is: 149,585.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,158.39 : 154,698.69 = 108,451.43 : x
  2. Step 2: Convert to fraction form
    112,158.39/154,698.69 = 108,451.43/x
  3. Step 3: Cross multiply
    112,158.39x = 154,698.69 × 108,451.43
  4. Step 4: Simplify right side
    112,158.39x = 16,777,294,149.63
  5. Step 5: Solve for x
    x = 16,777,294,149.63/112,158.39
  6. Step 6: Final answer
    x = 149,585.73

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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.