Home / 193,583.20-290,237.52-75,154.72

Finding the Fourth Proportional to 193,583.20, 290,237.52 and 75,154.72

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Solution

The fourth proportional to 193,583.20, 290,237.52 and 75,154.72 is: 112,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,583.20 : 290,237.52 = 75,154.72 : x
  2. Step 2: Convert to fraction form
    193,583.20/290,237.52 = 75,154.72/x
  3. Step 3: Cross multiply
    193,583.20x = 290,237.52 × 75,154.72
  4. Step 4: Simplify right side
    193,583.20x = 21,812,719,549.09
  5. Step 5: Solve for x
    x = 21,812,719,549.09/193,583.20
  6. Step 6: Final answer
    x = 112,678.78

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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.