Home / 213,965.26-295,282.20-129,080.50

Finding the Fourth Proportional to 213,965.26, 295,282.20 and 129,080.50

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Solution

The fourth proportional to 213,965.26, 295,282.20 and 129,080.50 is: 178,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,965.26 : 295,282.20 = 129,080.50 : x
  2. Step 2: Convert to fraction form
    213,965.26/295,282.20 = 129,080.50/x
  3. Step 3: Cross multiply
    213,965.26x = 295,282.20 × 129,080.50
  4. Step 4: Simplify right side
    213,965.26x = 38,115,174,017.10
  5. Step 5: Solve for x
    x = 38,115,174,017.10/213,965.26
  6. Step 6: Final answer
    x = 178,137.21

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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.