Home / 135,049.37-186,358.43-74,619.32

Finding the Fourth Proportional to 135,049.37, 186,358.43 and 74,619.32

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Solution

The fourth proportional to 135,049.37, 186,358.43 and 74,619.32 is: 102,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,049.37 : 186,358.43 = 74,619.32 : x
  2. Step 2: Convert to fraction form
    135,049.37/186,358.43 = 74,619.32/x
  3. Step 3: Cross multiply
    135,049.37x = 186,358.43 × 74,619.32
  4. Step 4: Simplify right side
    135,049.37x = 13,905,938,017.98
  5. Step 5: Solve for x
    x = 13,905,938,017.98/135,049.37
  6. Step 6: Final answer
    x = 102,969.30

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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.