Home / 103,654.12-155,484.42-28,775.02

Finding the Fourth Proportional to 103,654.12, 155,484.42 and 28,775.02

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Solution

The fourth proportional to 103,654.12, 155,484.42 and 28,775.02 is: 43,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,654.12 : 155,484.42 = 28,775.02 : x
  2. Step 2: Convert to fraction form
    103,654.12/155,484.42 = 28,775.02/x
  3. Step 3: Cross multiply
    103,654.12x = 155,484.42 × 28,775.02
  4. Step 4: Simplify right side
    103,654.12x = 4,474,067,295.19
  5. Step 5: Solve for x
    x = 4,474,067,295.19/103,654.12
  6. Step 6: Final answer
    x = 43,163.43

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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.