Home / 135,433.80-202,956.30-99,615.60

Finding the Fourth Proportional to 135,433.80, 202,956.30 and 99,615.60

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Solution

The fourth proportional to 135,433.80, 202,956.30 and 99,615.60 is: 149,280.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,433.80 : 202,956.30 = 99,615.60 : x
  2. Step 2: Convert to fraction form
    135,433.80/202,956.30 = 99,615.60/x
  3. Step 3: Cross multiply
    135,433.80x = 202,956.30 × 99,615.60
  4. Step 4: Simplify right side
    135,433.80x = 20,217,613,598.28
  5. Step 5: Solve for x
    x = 20,217,613,598.28/135,433.80
  6. Step 6: Final answer
    x = 149,280.41

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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.