Home / 140,749.92-194,239.56-77,091.24

Finding the Fourth Proportional to 140,749.92, 194,239.56 and 77,091.24

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Solution

The fourth proportional to 140,749.92, 194,239.56 and 77,091.24 is: 106,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,749.92 : 194,239.56 = 77,091.24 : x
  2. Step 2: Convert to fraction form
    140,749.92/194,239.56 = 77,091.24/x
  3. Step 3: Cross multiply
    140,749.92x = 194,239.56 × 77,091.24
  4. Step 4: Simplify right side
    140,749.92x = 14,974,168,537.45
  5. Step 5: Solve for x
    x = 14,974,168,537.45/140,749.92
  6. Step 6: Final answer
    x = 106,388.47

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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.