Home / 271,015.20-406,772.40-137,991.12

Finding the Fourth Proportional to 271,015.20, 406,772.40 and 137,991.12

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Solution

The fourth proportional to 271,015.20, 406,772.40 and 137,991.12 is: 207,113.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,015.20 : 406,772.40 = 137,991.12 : x
  2. Step 2: Convert to fraction form
    271,015.20/406,772.40 = 137,991.12/x
  3. Step 3: Cross multiply
    271,015.20x = 406,772.40 × 137,991.12
  4. Step 4: Simplify right side
    271,015.20x = 56,130,979,061.09
  5. Step 5: Solve for x
    x = 56,130,979,061.09/271,015.20
  6. Step 6: Final answer
    x = 207,113.77

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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.