Home / 103,650.12-155,478.42-28,771.02

Finding the Fourth Proportional to 103,650.12, 155,478.42 and 28,771.02

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Solution

The fourth proportional to 103,650.12, 155,478.42 and 28,771.02 is: 43,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,650.12 : 155,478.42 = 28,771.02 : x
  2. Step 2: Convert to fraction form
    103,650.12/155,478.42 = 28,771.02/x
  3. Step 3: Cross multiply
    103,650.12x = 155,478.42 × 28,771.02
  4. Step 4: Simplify right side
    103,650.12x = 4,473,272,731.39
  5. Step 5: Solve for x
    x = 4,473,272,731.39/103,650.12
  6. Step 6: Final answer
    x = 43,157.43

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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.