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Finding the Fourth Proportional to 139,045.39, 191,883.06 and 75,383.24

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Solution

The fourth proportional to 139,045.39, 191,883.06 and 75,383.24 is: 104,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,045.39 : 191,883.06 = 75,383.24 : x
  2. Step 2: Convert to fraction form
    139,045.39/191,883.06 = 75,383.24/x
  3. Step 3: Cross multiply
    139,045.39x = 191,883.06 × 75,383.24
  4. Step 4: Simplify right side
    139,045.39x = 14,464,765,804.50
  5. Step 5: Solve for x
    x = 14,464,765,804.50/139,045.39
  6. Step 6: Final answer
    x = 104,029.09

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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.