Home / 190,719.68-286,104.64-70,760.30

Finding the Fourth Proportional to 190,719.68, 286,104.64 and 70,760.30

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Solution

The fourth proportional to 190,719.68, 286,104.64 and 70,760.30 is: 106,149.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,719.68 : 286,104.64 = 70,760.30 : x
  2. Step 2: Convert to fraction form
    190,719.68/286,104.64 = 70,760.30/x
  3. Step 3: Cross multiply
    190,719.68x = 286,104.64 × 70,760.30
  4. Step 4: Simplify right side
    190,719.68x = 20,244,850,157.79
  5. Step 5: Solve for x
    x = 20,244,850,157.79/190,719.68
  6. Step 6: Final answer
    x = 106,149.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.