Home / 125,944.05-173,789.56-71,478.89

Finding the Fourth Proportional to 125,944.05, 173,789.56 and 71,478.89

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Solution

The fourth proportional to 125,944.05, 173,789.56 and 71,478.89 is: 98,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,944.05 : 173,789.56 = 71,478.89 : x
  2. Step 2: Convert to fraction form
    125,944.05/173,789.56 = 71,478.89/x
  3. Step 3: Cross multiply
    125,944.05x = 173,789.56 × 71,478.89
  4. Step 4: Simplify right side
    125,944.05x = 12,422,284,842.39
  5. Step 5: Solve for x
    x = 12,422,284,842.39/125,944.05
  6. Step 6: Final answer
    x = 98,633.36

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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.