Home / 219,711.40-329,129.70-114,589.60

Finding the Fourth Proportional to 219,711.40, 329,129.70 and 114,589.60

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Solution

The fourth proportional to 219,711.40, 329,129.70 and 114,589.60 is: 171,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,711.40 : 329,129.70 = 114,589.60 : x
  2. Step 2: Convert to fraction form
    219,711.40/329,129.70 = 114,589.60/x
  3. Step 3: Cross multiply
    219,711.40x = 329,129.70 × 114,589.60
  4. Step 4: Simplify right side
    219,711.40x = 37,714,840,671.12
  5. Step 5: Solve for x
    x = 37,714,840,671.12/219,711.40
  6. Step 6: Final answer
    x = 171,656.28

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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.