Home / 172,439.15-258,284.88-83,506.17

Finding the Fourth Proportional to 172,439.15, 258,284.88 and 83,506.17

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Solution

The fourth proportional to 172,439.15, 258,284.88 and 83,506.17 is: 125,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,439.15 : 258,284.88 = 83,506.17 : x
  2. Step 2: Convert to fraction form
    172,439.15/258,284.88 = 83,506.17/x
  3. Step 3: Cross multiply
    172,439.15x = 258,284.88 × 83,506.17
  4. Step 4: Simplify right side
    172,439.15x = 21,568,379,806.29
  5. Step 5: Solve for x
    x = 21,568,379,806.29/172,439.15
  6. Step 6: Final answer
    x = 125,078.21

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1.5x scale

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.