Home / 125,979.77-189,166.52-120,370.12

Finding the Fourth Proportional to 125,979.77, 189,166.52 and 120,370.12

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Solution

The fourth proportional to 125,979.77, 189,166.52 and 120,370.12 is: 180,743.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,979.77 : 189,166.52 = 120,370.12 : x
  2. Step 2: Convert to fraction form
    125,979.77/189,166.52 = 120,370.12/x
  3. Step 3: Cross multiply
    125,979.77x = 189,166.52 × 120,370.12
  4. Step 4: Simplify right side
    125,979.77x = 22,769,996,540.39
  5. Step 5: Solve for x
    x = 22,769,996,540.39/125,979.77
  6. Step 6: Final answer
    x = 180,743.27

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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.