Home / 117,940.05-162,812.43-75,522.78

Finding the Fourth Proportional to 117,940.05, 162,812.43 and 75,522.78

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Solution

The fourth proportional to 117,940.05, 162,812.43 and 75,522.78 is: 104,256.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,940.05 : 162,812.43 = 75,522.78 : x
  2. Step 2: Convert to fraction form
    117,940.05/162,812.43 = 75,522.78/x
  3. Step 3: Cross multiply
    117,940.05x = 162,812.43 × 75,522.78
  4. Step 4: Simplify right side
    117,940.05x = 12,296,047,332.16
  5. Step 5: Solve for x
    x = 12,296,047,332.16/117,940.05
  6. Step 6: Final answer
    x = 104,256.76

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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.