Home / 115,670.81-159,624.62-64,682.96

Finding the Fourth Proportional to 115,670.81, 159,624.62 and 64,682.96

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Solution

The fourth proportional to 115,670.81, 159,624.62 and 64,682.96 is: 89,261.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,670.81 : 159,624.62 = 64,682.96 : x
  2. Step 2: Convert to fraction form
    115,670.81/159,624.62 = 64,682.96/x
  3. Step 3: Cross multiply
    115,670.81x = 159,624.62 × 64,682.96
  4. Step 4: Simplify right side
    115,670.81x = 10,324,991,849.58
  5. Step 5: Solve for x
    x = 10,324,991,849.58/115,670.81
  6. Step 6: Final answer
    x = 89,261.86

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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.