Home / 135,918.74-203,836.50-64,803.88

Finding the Fourth Proportional to 135,918.74, 203,836.50 and 64,803.88

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Solution

The fourth proportional to 135,918.74, 203,836.50 and 64,803.88 is: 97,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,918.74 : 203,836.50 = 64,803.88 : x
  2. Step 2: Convert to fraction form
    135,918.74/203,836.50 = 64,803.88/x
  3. Step 3: Cross multiply
    135,918.74x = 203,836.50 × 64,803.88
  4. Step 4: Simplify right side
    135,918.74x = 13,209,396,340.42
  5. Step 5: Solve for x
    x = 13,209,396,340.42/135,918.74
  6. Step 6: Final answer
    x = 97,185.98

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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.