Home / 193,487.16-290,175.60-75,133.20

Finding the Fourth Proportional to 193,487.16, 290,175.60 and 75,133.20

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Solution

The fourth proportional to 193,487.16, 290,175.60 and 75,133.20 is: 112,678.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,487.16 : 290,175.60 = 75,133.20 : x
  2. Step 2: Convert to fraction form
    193,487.16/290,175.60 = 75,133.20/x
  3. Step 3: Cross multiply
    193,487.16x = 290,175.60 × 75,133.20
  4. Step 4: Simplify right side
    193,487.16x = 21,801,821,389.92
  5. Step 5: Solve for x
    x = 21,801,821,389.92/193,487.16
  6. Step 6: Final answer
    x = 112,678.39

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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.