Home / 188,645.09-260,324.79-103,762.15

Finding the Fourth Proportional to 188,645.09, 260,324.79 and 103,762.15

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Solution

The fourth proportional to 188,645.09, 260,324.79 and 103,762.15 is: 143,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,645.09 : 260,324.79 = 103,762.15 : x
  2. Step 2: Convert to fraction form
    188,645.09/260,324.79 = 103,762.15/x
  3. Step 3: Cross multiply
    188,645.09x = 260,324.79 × 103,762.15
  4. Step 4: Simplify right side
    188,645.09x = 27,011,858,868.78
  5. Step 5: Solve for x
    x = 27,011,858,868.78/188,645.09
  6. Step 6: Final answer
    x = 143,188.78

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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.