Home / 135,431.80-202,953.30-99,613.60

Finding the Fourth Proportional to 135,431.80, 202,953.30 and 99,613.60

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Solution

The fourth proportional to 135,431.80, 202,953.30 and 99,613.60 is: 149,277.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,431.80 : 202,953.30 = 99,613.60 : x
  2. Step 2: Convert to fraction form
    135,431.80/202,953.30 = 99,613.60/x
  3. Step 3: Cross multiply
    135,431.80x = 202,953.30 × 99,613.60
  4. Step 4: Simplify right side
    135,431.80x = 20,216,908,844.88
  5. Step 5: Solve for x
    x = 20,216,908,844.88/135,431.80
  6. Step 6: Final answer
    x = 149,277.41

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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.