Home / 189,072.52-260,908.32-108,506.68

Finding the Fourth Proportional to 189,072.52, 260,908.32 and 108,506.68

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Solution

The fourth proportional to 189,072.52, 260,908.32 and 108,506.68 is: 149,732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,072.52 : 260,908.32 = 108,506.68 : x
  2. Step 2: Convert to fraction form
    189,072.52/260,908.32 = 108,506.68/x
  3. Step 3: Cross multiply
    189,072.52x = 260,908.32 × 108,506.68
  4. Step 4: Simplify right side
    189,072.52x = 28,310,295,587.58
  5. Step 5: Solve for x
    x = 28,310,295,587.58/189,072.52
  6. Step 6: Final answer
    x = 149,732.47

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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.