Home / 139,749.75-192,848.19-76,087.35

Finding the Fourth Proportional to 139,749.75, 192,848.19 and 76,087.35

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Solution

The fourth proportional to 139,749.75, 192,848.19 and 76,087.35 is: 104,997.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,749.75 : 192,848.19 = 76,087.35 : x
  2. Step 2: Convert to fraction form
    139,749.75/192,848.19 = 76,087.35/x
  3. Step 3: Cross multiply
    139,749.75x = 192,848.19 × 76,087.35
  4. Step 4: Simplify right side
    139,749.75x = 14,673,307,729.40
  5. Step 5: Solve for x
    x = 14,673,307,729.40/139,749.75
  6. Step 6: Final answer
    x = 104,997.02

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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.