Home / 188,736.25-260,457.85-103,855.14

Finding the Fourth Proportional to 188,736.25, 260,457.85 and 103,855.14

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Solution

The fourth proportional to 188,736.25, 260,457.85 and 103,855.14 is: 143,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,736.25 : 260,457.85 = 103,855.14 : x
  2. Step 2: Convert to fraction form
    188,736.25/260,457.85 = 103,855.14/x
  3. Step 3: Cross multiply
    188,736.25x = 260,457.85 × 103,855.14
  4. Step 4: Simplify right side
    188,736.25x = 27,049,886,475.85
  5. Step 5: Solve for x
    x = 27,049,886,475.85/188,736.25
  6. Step 6: Final answer
    x = 143,321.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.