Home / 139,202.96-192,182.58-91,538.51

Finding the Fourth Proportional to 139,202.96, 192,182.58 and 91,538.51

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Solution

The fourth proportional to 139,202.96, 192,182.58 and 91,538.51 is: 126,377.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,202.96 : 192,182.58 = 91,538.51 : x
  2. Step 2: Convert to fraction form
    139,202.96/192,182.58 = 91,538.51/x
  3. Step 3: Cross multiply
    139,202.96x = 192,182.58 × 91,538.51
  4. Step 4: Simplify right side
    139,202.96x = 17,592,106,060.24
  5. Step 5: Solve for x
    x = 17,592,106,060.24/139,202.96
  6. Step 6: Final answer
    x = 126,377.39

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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.