Home / 193,289.24-289,864.39-66,895.20

Finding the Fourth Proportional to 193,289.24, 289,864.39 and 66,895.20

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Solution

The fourth proportional to 193,289.24, 289,864.39 and 66,895.20 is: 100,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,289.24 : 289,864.39 = 66,895.20 : x
  2. Step 2: Convert to fraction form
    193,289.24/289,864.39 = 66,895.20/x
  3. Step 3: Cross multiply
    193,289.24x = 289,864.39 × 66,895.20
  4. Step 4: Simplify right side
    193,289.24x = 19,390,536,341.93
  5. Step 5: Solve for x
    x = 19,390,536,341.93/193,289.24
  6. Step 6: Final answer
    x = 100,318.76

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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.