Home / 188,028.50-259,479.34-103,145.76

Finding the Fourth Proportional to 188,028.50, 259,479.34 and 103,145.76

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Solution

The fourth proportional to 188,028.50, 259,479.34 and 103,145.76 is: 142,341.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,028.50 : 259,479.34 = 103,145.76 : x
  2. Step 2: Convert to fraction form
    188,028.50/259,479.34 = 103,145.76/x
  3. Step 3: Cross multiply
    188,028.50x = 259,479.34 × 103,145.76
  4. Step 4: Simplify right side
    188,028.50x = 26,764,193,728.60
  5. Step 5: Solve for x
    x = 26,764,193,728.60/188,028.50
  6. Step 6: Final answer
    x = 142,341.15

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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.