Home / 193,479.16-290,163.64-75,125.20

Finding the Fourth Proportional to 193,479.16, 290,163.64 and 75,125.20

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Solution

The fourth proportional to 193,479.16, 290,163.64 and 75,125.20 is: 112,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,479.16 : 290,163.64 = 75,125.20 : x
  2. Step 2: Convert to fraction form
    193,479.16/290,163.64 = 75,125.20/x
  3. Step 3: Cross multiply
    193,479.16x = 290,163.64 × 75,125.20
  4. Step 4: Simplify right side
    193,479.16x = 21,798,601,487.73
  5. Step 5: Solve for x
    x = 21,798,601,487.73/193,479.16
  6. Step 6: Final answer
    x = 112,666.41

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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.