Home / 270,731.36-406,166.16-81,191

Finding the Fourth Proportional to 270,731.36, 406,166.16 and 81,191

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Solution

The fourth proportional to 270,731.36, 406,166.16 and 81,191 is: 121,807.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,731.36 : 406,166.16 = 81,191 : x
  2. Step 2: Convert to fraction form
    270,731.36/406,166.16 = 81,191/x
  3. Step 3: Cross multiply
    270,731.36x = 406,166.16 × 81,191
  4. Step 4: Simplify right side
    270,731.36x = 32,977,036,696.56
  5. Step 5: Solve for x
    x = 32,977,036,696.56/270,731.36
  6. Step 6: Final answer
    x = 121,807.23

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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.