Home / 188,028.68-259,478.02-103,144.20

Finding the Fourth Proportional to 188,028.68, 259,478.02 and 103,144.20

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Solution

The fourth proportional to 188,028.68, 259,478.02 and 103,144.20 is: 142,338.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,028.68 : 259,478.02 = 103,144.20 : x
  2. Step 2: Convert to fraction form
    188,028.68/259,478.02 = 103,144.20/x
  3. Step 3: Cross multiply
    188,028.68x = 259,478.02 × 103,144.20
  4. Step 4: Simplify right side
    188,028.68x = 26,763,652,790.48
  5. Step 5: Solve for x
    x = 26,763,652,790.48/188,028.68
  6. Step 6: Final answer
    x = 142,338.14

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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.