Home / 117,255.62-161,849.50-74,814.08

Finding the Fourth Proportional to 117,255.62, 161,849.50 and 74,814.08

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Solution

The fourth proportional to 117,255.62, 161,849.50 and 74,814.08 is: 103,266.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,255.62 : 161,849.50 = 74,814.08 : x
  2. Step 2: Convert to fraction form
    117,255.62/161,849.50 = 74,814.08/x
  3. Step 3: Cross multiply
    117,255.62x = 161,849.50 × 74,814.08
  4. Step 4: Simplify right side
    117,255.62x = 12,108,621,440.96
  5. Step 5: Solve for x
    x = 12,108,621,440.96/117,255.62
  6. Step 6: Final answer
    x = 103,266.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.