Home / 125,901.52-188,827.08-80,789.32

Finding the Fourth Proportional to 125,901.52, 188,827.08 and 80,789.32

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Solution

The fourth proportional to 125,901.52, 188,827.08 and 80,789.32 is: 121,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,901.52 : 188,827.08 = 80,789.32 : x
  2. Step 2: Convert to fraction form
    125,901.52/188,827.08 = 80,789.32/x
  3. Step 3: Cross multiply
    125,901.52x = 188,827.08 × 80,789.32
  4. Step 4: Simplify right side
    125,901.52x = 15,255,211,390.79
  5. Step 5: Solve for x
    x = 15,255,211,390.79/125,901.52
  6. Step 6: Final answer
    x = 121,167.81

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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.