Home / 103,380.44-155,071.35-28,504.62

Finding the Fourth Proportional to 103,380.44, 155,071.35 and 28,504.62

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Solution

The fourth proportional to 103,380.44, 155,071.35 and 28,504.62 is: 42,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,380.44 : 155,071.35 = 28,504.62 : x
  2. Step 2: Convert to fraction form
    103,380.44/155,071.35 = 28,504.62/x
  3. Step 3: Cross multiply
    103,380.44x = 155,071.35 × 28,504.62
  4. Step 4: Simplify right side
    103,380.44x = 4,420,249,904.64
  5. Step 5: Solve for x
    x = 4,420,249,904.64/103,380.44
  6. Step 6: Final answer
    x = 42,757.12

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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.