Home / 135,201.58-186,577.09-74,774.77

Finding the Fourth Proportional to 135,201.58, 186,577.09 and 74,774.77

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Solution

The fourth proportional to 135,201.58, 186,577.09 and 74,774.77 is: 103,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,201.58 : 186,577.09 = 74,774.77 : x
  2. Step 2: Convert to fraction form
    135,201.58/186,577.09 = 74,774.77/x
  3. Step 3: Cross multiply
    135,201.58x = 186,577.09 × 74,774.77
  4. Step 4: Simplify right side
    135,201.58x = 13,951,258,338.64
  5. Step 5: Solve for x
    x = 13,951,258,338.64/135,201.58
  6. Step 6: Final answer
    x = 103,188.58

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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.