Home / 127,806.43-176,373.58-74,123.28

Finding the Fourth Proportional to 127,806.43, 176,373.58 and 74,123.28

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Solution

The fourth proportional to 127,806.43, 176,373.58 and 74,123.28 is: 102,290.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,806.43 : 176,373.58 = 74,123.28 : x
  2. Step 2: Convert to fraction form
    127,806.43/176,373.58 = 74,123.28/x
  3. Step 3: Cross multiply
    127,806.43x = 176,373.58 × 74,123.28
  4. Step 4: Simplify right side
    127,806.43x = 13,073,388,254.94
  5. Step 5: Solve for x
    x = 13,073,388,254.94/127,806.43
  6. Step 6: Final answer
    x = 102,290.54

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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.