Home / 115,505.36-159,396.18-67,749.56

Finding the Fourth Proportional to 115,505.36, 159,396.18 and 67,749.56

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Solution

The fourth proportional to 115,505.36, 159,396.18 and 67,749.56 is: 93,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,505.36 : 159,396.18 = 67,749.56 : x
  2. Step 2: Convert to fraction form
    115,505.36/159,396.18 = 67,749.56/x
  3. Step 3: Cross multiply
    115,505.36x = 159,396.18 × 67,749.56
  4. Step 4: Simplify right side
    115,505.36x = 10,799,021,060.68
  5. Step 5: Solve for x
    x = 10,799,021,060.68/115,505.36
  6. Step 6: Final answer
    x = 93,493.68

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1.5x scale

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.