Home / 115,818.21-159,821.73-64,822.37

Finding the Fourth Proportional to 115,818.21, 159,821.73 and 64,822.37

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Solution

The fourth proportional to 115,818.21, 159,821.73 and 64,822.37 is: 89,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,818.21 : 159,821.73 = 64,822.37 : x
  2. Step 2: Convert to fraction form
    115,818.21/159,821.73 = 64,822.37/x
  3. Step 3: Cross multiply
    115,818.21x = 159,821.73 × 64,822.37
  4. Step 4: Simplify right side
    115,818.21x = 10,360,022,516.99
  5. Step 5: Solve for x
    x = 10,360,022,516.99/115,818.21
  6. Step 6: Final answer
    x = 89,450.72

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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.