Home / 188,609.04-260,285.40-103,728.33

Finding the Fourth Proportional to 188,609.04, 260,285.40 and 103,728.33

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Solution

The fourth proportional to 188,609.04, 260,285.40 and 103,728.33 is: 143,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,609.04 : 260,285.40 = 103,728.33 : x
  2. Step 2: Convert to fraction form
    188,609.04/260,285.40 = 103,728.33/x
  3. Step 3: Cross multiply
    188,609.04x = 260,285.40 × 103,728.33
  4. Step 4: Simplify right side
    188,609.04x = 26,998,969,865.38
  5. Step 5: Solve for x
    x = 26,998,969,865.38/188,609.04
  6. Step 6: Final answer
    x = 143,147.80

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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.