Home / 117,930.96-162,739.18-64,215.81

Finding the Fourth Proportional to 117,930.96, 162,739.18 and 64,215.81

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Solution

The fourth proportional to 117,930.96, 162,739.18 and 64,215.81 is: 88,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,930.96 : 162,739.18 = 64,215.81 : x
  2. Step 2: Convert to fraction form
    117,930.96/162,739.18 = 64,215.81/x
  3. Step 3: Cross multiply
    117,930.96x = 162,739.18 × 64,215.81
  4. Step 4: Simplify right side
    117,930.96x = 10,450,428,439.20
  5. Step 5: Solve for x
    x = 10,450,428,439.20/117,930.96
  6. Step 6: Final answer
    x = 88,614.80

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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.