Home / 139,749.14-192,848.64-76,085.66

Finding the Fourth Proportional to 139,749.14, 192,848.64 and 76,085.66

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Solution

The fourth proportional to 139,749.14, 192,848.64 and 76,085.66 is: 104,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,749.14 : 192,848.64 = 76,085.66 : x
  2. Step 2: Convert to fraction form
    139,749.14/192,848.64 = 76,085.66/x
  3. Step 3: Cross multiply
    139,749.14x = 192,848.64 × 76,085.66
  4. Step 4: Simplify right side
    139,749.14x = 14,673,016,054.50
  5. Step 5: Solve for x
    x = 14,673,016,054.50/139,749.14
  6. Step 6: Final answer
    x = 104,995.39

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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.