Home / 112,310.25-168,418.90-45,705.16

Finding the Fourth Proportional to 112,310.25, 168,418.90 and 45,705.16

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Solution

The fourth proportional to 112,310.25, 168,418.90 and 45,705.16 is: 68,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,310.25 : 168,418.90 = 45,705.16 : x
  2. Step 2: Convert to fraction form
    112,310.25/168,418.90 = 45,705.16/x
  3. Step 3: Cross multiply
    112,310.25x = 168,418.90 × 45,705.16
  4. Step 4: Simplify right side
    112,310.25x = 7,697,612,782.09
  5. Step 5: Solve for x
    x = 7,697,612,782.09/112,310.25
  6. Step 6: Final answer
    x = 68,538.83

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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.