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Finding the Fourth Proportional to 183,145.72, 274,496.76 and 77,743.36

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Solution

The fourth proportional to 183,145.72, 274,496.76 and 77,743.36 is: 116,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,145.72 : 274,496.76 = 77,743.36 : x
  2. Step 2: Convert to fraction form
    183,145.72/274,496.76 = 77,743.36/x
  3. Step 3: Cross multiply
    183,145.72x = 274,496.76 × 77,743.36
  4. Step 4: Simplify right side
    183,145.72x = 21,340,300,431.51
  5. Step 5: Solve for x
    x = 21,340,300,431.51/183,145.72
  6. Step 6: Final answer
    x = 116,520.88

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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.