Home / 135,201.06-186,583.30-74,771.72

Finding the Fourth Proportional to 135,201.06, 186,583.30 and 74,771.72

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Solution

The fourth proportional to 135,201.06, 186,583.30 and 74,771.72 is: 103,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,201.06 : 186,583.30 = 74,771.72 : x
  2. Step 2: Convert to fraction form
    135,201.06/186,583.30 = 74,771.72/x
  3. Step 3: Cross multiply
    135,201.06x = 186,583.30 × 74,771.72
  4. Step 4: Simplify right side
    135,201.06x = 13,951,154,264.28
  5. Step 5: Solve for x
    x = 13,951,154,264.28/135,201.06
  6. Step 6: Final answer
    x = 103,188.20

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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.