Home / 116,201.28-174,070.80-91,123.68

Finding the Fourth Proportional to 116,201.28, 174,070.80 and 91,123.68

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Solution

The fourth proportional to 116,201.28, 174,070.80 and 91,123.68 is: 136,504.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,201.28 : 174,070.80 = 91,123.68 : x
  2. Step 2: Convert to fraction form
    116,201.28/174,070.80 = 91,123.68/x
  3. Step 3: Cross multiply
    116,201.28x = 174,070.80 × 91,123.68
  4. Step 4: Simplify right side
    116,201.28x = 15,861,971,876.54
  5. Step 5: Solve for x
    x = 15,861,971,876.54/116,201.28
  6. Step 6: Final answer
    x = 136,504.28

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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.