Home / 115,884.03-159,906.75-64,889.67

Finding the Fourth Proportional to 115,884.03, 159,906.75 and 64,889.67

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Solution

The fourth proportional to 115,884.03, 159,906.75 and 64,889.67 is: 89,540.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,884.03 : 159,906.75 = 64,889.67 : x
  2. Step 2: Convert to fraction form
    115,884.03/159,906.75 = 64,889.67/x
  3. Step 3: Cross multiply
    115,884.03x = 159,906.75 × 64,889.67
  4. Step 4: Simplify right side
    115,884.03x = 10,376,296,238.27
  5. Step 5: Solve for x
    x = 10,376,296,238.27/115,884.03
  6. Step 6: Final answer
    x = 89,540.35

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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.