Home / 125,939.52-173,789.28-75,628.80

Finding the Fourth Proportional to 125,939.52, 173,789.28 and 75,628.80

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Solution

The fourth proportional to 125,939.52, 173,789.28 and 75,628.80 is: 104,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,939.52 : 173,789.28 = 75,628.80 : x
  2. Step 2: Convert to fraction form
    125,939.52/173,789.28 = 75,628.80/x
  3. Step 3: Cross multiply
    125,939.52x = 173,789.28 × 75,628.80
  4. Step 4: Simplify right side
    125,939.52x = 13,143,474,699.26
  5. Step 5: Solve for x
    x = 13,143,474,699.26/125,939.52
  6. Step 6: Final answer
    x = 104,363.39

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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.