Home / 135,415.55-186,873.63-74,161.46

Finding the Fourth Proportional to 135,415.55, 186,873.63 and 74,161.46

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Solution

The fourth proportional to 135,415.55, 186,873.63 and 74,161.46 is: 102,342.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,415.55 : 186,873.63 = 74,161.46 : x
  2. Step 2: Convert to fraction form
    135,415.55/186,873.63 = 74,161.46/x
  3. Step 3: Cross multiply
    135,415.55x = 186,873.63 × 74,161.46
  4. Step 4: Simplify right side
    135,415.55x = 13,858,821,236.30
  5. Step 5: Solve for x
    x = 13,858,821,236.30/135,415.55
  6. Step 6: Final answer
    x = 102,342.91

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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.