Home / 135,266.72-202,733.90-75,977.76

Finding the Fourth Proportional to 135,266.72, 202,733.90 and 75,977.76

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Solution

The fourth proportional to 135,266.72, 202,733.90 and 75,977.76 is: 113,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,266.72 : 202,733.90 = 75,977.76 : x
  2. Step 2: Convert to fraction form
    135,266.72/202,733.90 = 75,977.76/x
  3. Step 3: Cross multiply
    135,266.72x = 202,733.90 × 75,977.76
  4. Step 4: Simplify right side
    135,266.72x = 15,403,267,598.06
  5. Step 5: Solve for x
    x = 15,403,267,598.06/135,266.72
  6. Step 6: Final answer
    x = 113,873.30

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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.