Home / 115,749.76-159,733.28-68,007.52

Finding the Fourth Proportional to 115,749.76, 159,733.28 and 68,007.52

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Solution

The fourth proportional to 115,749.76, 159,733.28 and 68,007.52 is: 93,849.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,749.76 : 159,733.28 = 68,007.52 : x
  2. Step 2: Convert to fraction form
    115,749.76/159,733.28 = 68,007.52/x
  3. Step 3: Cross multiply
    115,749.76x = 159,733.28 × 68,007.52
  4. Step 4: Simplify right side
    115,749.76x = 10,863,064,234.27
  5. Step 5: Solve for x
    x = 10,863,064,234.27/115,749.76
  6. Step 6: Final answer
    x = 93,849.56

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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.