Home / 135,200.89-186,573.79-74,769.92

Finding the Fourth Proportional to 135,200.89, 186,573.79 and 74,769.92

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Solution

The fourth proportional to 135,200.89, 186,573.79 and 74,769.92 is: 103,180.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,200.89 : 186,573.79 = 74,769.92 : x
  2. Step 2: Convert to fraction form
    135,200.89/186,573.79 = 74,769.92/x
  3. Step 3: Cross multiply
    135,200.89x = 186,573.79 × 74,769.92
  4. Step 4: Simplify right side
    135,200.89x = 13,950,107,352.40
  5. Step 5: Solve for x
    x = 13,950,107,352.40/135,200.89
  6. Step 6: Final answer
    x = 103,180.59

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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.