Home / 102,931.89-154,198.05-75,865.02

Finding the Fourth Proportional to 102,931.89, 154,198.05 and 75,865.02

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Solution

The fourth proportional to 102,931.89, 154,198.05 and 75,865.02 is: 113,650.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,931.89 : 154,198.05 = 75,865.02 : x
  2. Step 2: Convert to fraction form
    102,931.89/154,198.05 = 75,865.02/x
  3. Step 3: Cross multiply
    102,931.89x = 154,198.05 × 75,865.02
  4. Step 4: Simplify right side
    102,931.89x = 11,698,238,147.21
  5. Step 5: Solve for x
    x = 11,698,238,147.21/102,931.89
  6. Step 6: Final answer
    x = 113,650.28

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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.