Home / 109,869.35-164,858.70-43,311.65

Finding the Fourth Proportional to 109,869.35, 164,858.70 and 43,311.65

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Solution

The fourth proportional to 109,869.35, 164,858.70 and 43,311.65 is: 64,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.35 : 164,858.70 = 43,311.65 : x
  2. Step 2: Convert to fraction form
    109,869.35/164,858.70 = 43,311.65/x
  3. Step 3: Cross multiply
    109,869.35x = 164,858.70 × 43,311.65
  4. Step 4: Simplify right side
    109,869.35x = 7,140,302,313.86
  5. Step 5: Solve for x
    x = 7,140,302,313.86/109,869.35
  6. Step 6: Final answer
    x = 64,989.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.