Home / 172,405.03-258,617.25-52,465.88

Finding the Fourth Proportional to 172,405.03, 258,617.25 and 52,465.88

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Solution

The fourth proportional to 172,405.03, 258,617.25 and 52,465.88 is: 78,701.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,405.03 : 258,617.25 = 52,465.88 : x
  2. Step 2: Convert to fraction form
    172,405.03/258,617.25 = 52,465.88/x
  3. Step 3: Cross multiply
    172,405.03x = 258,617.25 × 52,465.88
  4. Step 4: Simplify right side
    172,405.03x = 13,568,581,527.09
  5. Step 5: Solve for x
    x = 13,568,581,527.09/172,405.03
  6. Step 6: Final answer
    x = 78,701.77

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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.