Home / 189,599.54-261,642.66-109,025.14

Finding the Fourth Proportional to 189,599.54, 261,642.66 and 109,025.14

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Solution

The fourth proportional to 189,599.54, 261,642.66 and 109,025.14 is: 150,451.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,599.54 : 261,642.66 = 109,025.14 : x
  2. Step 2: Convert to fraction form
    189,599.54/261,642.66 = 109,025.14/x
  3. Step 3: Cross multiply
    189,599.54x = 261,642.66 × 109,025.14
  4. Step 4: Simplify right side
    189,599.54x = 28,525,627,064.10
  5. Step 5: Solve for x
    x = 28,525,627,064.10/189,599.54
  6. Step 6: Final answer
    x = 150,451.99

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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.