Home / 115,860.21-159,885.86-64,873.41

Finding the Fourth Proportional to 115,860.21, 159,885.86 and 64,873.41

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Solution

The fourth proportional to 115,860.21, 159,885.86 and 64,873.41 is: 89,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,860.21 : 159,885.86 = 64,873.41 : x
  2. Step 2: Convert to fraction form
    115,860.21/159,885.86 = 64,873.41/x
  3. Step 3: Cross multiply
    115,860.21x = 159,885.86 × 64,873.41
  4. Step 4: Simplify right side
    115,860.21x = 10,372,340,624.62
  5. Step 5: Solve for x
    x = 10,372,340,624.62/115,860.21
  6. Step 6: Final answer
    x = 89,524.61

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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.