Home / 172,086.04-258,090.13-65,431.95

Finding the Fourth Proportional to 172,086.04, 258,090.13 and 65,431.95

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Solution

The fourth proportional to 172,086.04, 258,090.13 and 65,431.95 is: 98,133.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,086.04 : 258,090.13 = 65,431.95 : x
  2. Step 2: Convert to fraction form
    172,086.04/258,090.13 = 65,431.95/x
  3. Step 3: Cross multiply
    172,086.04x = 258,090.13 × 65,431.95
  4. Step 4: Simplify right side
    172,086.04x = 16,887,340,481.65
  5. Step 5: Solve for x
    x = 16,887,340,481.65/172,086.04
  6. Step 6: Final answer
    x = 98,133.12

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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.