Home / 109,379.64-163,814.52-105,591.34

Finding the Fourth Proportional to 109,379.64, 163,814.52 and 105,591.34

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Solution

The fourth proportional to 109,379.64, 163,814.52 and 105,591.34 is: 158,140.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,379.64 : 163,814.52 = 105,591.34 : x
  2. Step 2: Convert to fraction form
    109,379.64/163,814.52 = 105,591.34/x
  3. Step 3: Cross multiply
    109,379.64x = 163,814.52 × 105,591.34
  4. Step 4: Simplify right side
    109,379.64x = 17,297,394,678.26
  5. Step 5: Solve for x
    x = 17,297,394,678.26/109,379.64
  6. Step 6: Final answer
    x = 158,140.91

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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.