Home / 135,965.60-203,948.40-61,121.60

Finding the Fourth Proportional to 135,965.60, 203,948.40 and 61,121.60

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Solution

The fourth proportional to 135,965.60, 203,948.40 and 61,121.60 is: 91,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,965.60 : 203,948.40 = 61,121.60 : x
  2. Step 2: Convert to fraction form
    135,965.60/203,948.40 = 61,121.60/x
  3. Step 3: Cross multiply
    135,965.60x = 203,948.40 × 61,121.60
  4. Step 4: Simplify right side
    135,965.60x = 12,465,652,525.44
  5. Step 5: Solve for x
    x = 12,465,652,525.44/135,965.60
  6. Step 6: Final answer
    x = 91,682.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.